Member mounting structure and member mounting apparatus

ABSTRACT

Disclosed is a member mounting structure and a member mounting apparatus for mounting a member such as a solid state image input unit in which mounting of the solid state image input unit can be achieved with high accuracy after positioning adjustment along five axes, yield of production can be increased, and at the same time, decrease of fixing force of the solid state image input unit after production (after adhesive material has been hardened) does not occur by means that positioning adjustment of the solid state image input unit along five axes is easily performed before adhering and fixing of the solid state image input unit. An intermediate holding member is disposed between a frame and the solid state image input unit so that a first adhered surface between the frame and the intermediate holding member, and a second adhered surface between the solid state image input unit and intermediate holding member are arranged parallely with pixel lines and at the same time, the first adhered surface and second adhered surface are arranged to make a right angle.

FIELD OF THE INVENTION

[0001] The present invention relates to a member mounting structure anda mounting apparatus for mounting a member such as a solid state imageinput unit, more specifically, relates to a member mounting structureand a member mounting apparatus for mounting a member such as a solidstate image input unit utilized in copying machine, facsimile machine,image scanner and so on, in which an optical image is read by utilizingthe solid state image input unit

BACKGROUND OF THE INVENTION

[0002] Generally, an image forming apparatus in which optical image isinput as optical signal using a solid state image input unit such asCCD, inputs image of object 1 focused on solid state image input unit 3through image forming lens unit 2 as shown in FIG. 46. In the solidstate image input unit 3, one line of the solid state image input unitis utilized in which plurality of micro photoelectric converting devices(hereinafter it is referred to as merely “pixel”, which usually has asmall dimension of some micrometers square) are arranged in a straightline.

[0003] In the image input unit as above described, in order to arrange aline image which is focused by the image for lens unit 2, on the solidstate image input unit and at the same time, in order to read outoptical characteristics (focus, magnification and so on) in apredetermined accuracy level, it is required that the image forming lensunit 2 and the pixel line 4 of a line of solid state image input unit 3are adjusted their position by micro movement along three axisdirections such as X, Y and Z axes, and around two rotational directionssuch as β rotation around Y axis and γ rotation around Z axis (hereafterrotational directions around the two axes referred merely to asmovements along axes such as β axis and γ axis, and X, Y, Z, β and γaxes are merely referred to as five axes.) as shown m FIG. 47. At thistime, the reference numeral 5 in FIG. 46, 47 designates an axis of thelens unit 2.

[0004] At this point, the reason why an adjustment around X axis is notperformed is that the distances between the image forming lens unit 2and respective pixels of the solid state image input unit 3, become notdifferent even when the adjustment along the X axis is not performed,because the X axis is located along (in parallel to) a direction of theline of pixels, in comparison with that the adjustments around the β andγ axes cause the accuracy of optical characteristics to deterioratebecause the distances between the image forming lens unit 2 andrespective pixels of the solid state image input unit 3 become differentwhen the adjustment around the β axis and γ axis are not performed.

[0005] In the mean time, in order to input colored images there is acase in that the solid state image input unit 6 in which pixel R(6 a),B(6 b) And G(6 c) having a peak of the spectroscopic sensitivity in Red(hereinafter referred to as merely “R”), Green (hereinafter referred toas merely “G” ) and Blue (hereinafter referred to as merely “B” )respectively; are arranged in three lines respectively, is used as shownin FIG. 48.

[0006] Usually, accurate positioning adjustment of such solid stateimage input unit 6 is requested in high precision for every fivedimension respectively, and what is seemed to be indispensable to attainthe request is a technology by which positional discrepancy ofpositioning of solid state image input unit 6 is not happened when thesolid state image input unit 6 is fixed onto a frame after position ofsolid state image input unit 6 is adjusted as above stated.

[0007] The reason why such technology is requested is because even thepositioning has been adjusted with high precision, when positionaldiscrepancy happens at fixing, positioning adjustment must be performedagain or separable members must be scraped in case of the fixing methodin which parts are not separable.

[0008] To solve the kind of inconvenience it may the into considerationthat complicated structural parts composed with arrowheads, balls andsprings instead of screws are utilized, however, the cost increases muchmore because the complicated structural parts are expensive.

[0009] Accordingly, at present a fixing by adhesive material is mainlytried which is thought that amount of positional discrepancy is muchless than that by screws and that problem regarding to number of membersis much less. There are two methods in the fixing by adhesive materialwhen it is classified roughly, one is a method for the case that objectsto be fixed together are contacting each other, and another is a methodfor the case that objects to be fixed together are not contacting with aspace.

[0010] At this time, the former is called as contacting adhering methodand the latter is called as caulking adhering method.

[0011] In the caulking adhering method, there is a space which is largerthan that for an adjusting, and the adhesive material is introduced andfilled the space in order to fix the space. As a prior art technology ofthis kind in the caulking adhering method, there is a techniquedisclosed, for example, in Japanese Patent Laid Open Hei 7(1995)-297993. The technology settles the space between the objects tobe adhered so that the objects to be adhered would not contact eachother even when they have problem of accuracy in shape and size and theadhesive material is filled between the space to fix.

[0012] Also, as a mounting method onto a head holding member through anultraviolet curing adhesive material, there is a method as shown in FIG.49.

[0013] In the method shown in FIG. 49, the adhesive material 12 ispanted on one surface of a work piece 11 and the work piece 11 isadjusted for its positional relation to a work piece holding member 13as shown in FIG. 49(A). When the work piece 11 is fixed onto the workpiece holding member 13 through the adhesive material 12, by irradiatingultraviolet to the adhesive material 12 through a light guide L from aspace between the work piece 11 and the work piece holding member 13,the adhesive material 12 is hardened to fix the work piece 11 onto thework piece holding member 13 as shown in FIG. 49(B). At this time, wheneither one of the work piece 11 or the work piece holding member 13 ismade of a ultraviolet transparent materials, the ultraviolet may bepassed through the transparent material to irradiate the adhesivematerial 12.

[0014] However, in the prior art technique such as described above,because the amount of space is settled so that the objects to be fixedwould not contact each other and the adhesive material is filled betweenthe space to fix, problems as listed below have taken place.

[0015] Hereinafter, this caulking adhering method will be explained withreference to a drawing of one example as shown in FIG. 50, and theproblems of it will he concretely explained.

[0016] In FIG. 50, the reference numeral 14 designates a work piece tobe adhered, 15 designates a work piece holding member and 16 designatesthe adhesive material, the work piece 14 will he fixed onto the workpiece holding member 15 by causing the adhesive material 16 between thework piece 14 and the work piece holding member 15 and hardened in thisexample.

[0017] To adhere and fix the work piece 14 on the work piece holdingmember 15 without contacting each other, a space B is required in orderto keep a space to be filled by the adhesive material 16 so that theadhered surface 14 a of work piece 14 and the adhered surface 15 a ofwork piece holding member 15 would not contact each other even whenamount of dispersion in positional discrepancy is A (space forpositioning adjustment of the work piece 14) at the adhered surface 14 aof work piece 14, and an amount of dispersion in positional discrepancyC at the adhered surface 15 a of work piece holding member 15, occur.

[0018] In consequence of this, the film thickness of adhesive material16 varies from B at the minimum and to A+B+C at the maximum, item itbecomes dispersing in a range A+C.

[0019] Further, it may also become dispersing in a range I+J because ofinfluence of a surface accuracy in the adhered surface 14 a of workpiece 14 and the adhered surface 15 a of work piece holding member 15.

[0020] Generally, as the adhesive material shrinks when it is hardened,it becomes important that the thickness of adhesive material must bereduced as little as possible in order for the objects to be fixed notto have the positional discrepancy after the adhesive material has beenhardened. On the contrary, as the film thickness of adhesive materialcannot be made less than B in the above described caulking adheringmethods, there was a case in that an improvement in the amount ofpositional discrepancy after fixing, could not be realized becausechanging of film thickness as a counter measure could not be appliedeven the positional discrepancy happened with amount much larger thanthe tolerable amount when the film thickness of adhesive material is B.

[0021] Because a dispersion of the film thickness happens within a rangeof A+C, the amount of shrinkage at the adhesive material after fixing,changes together in accordance with the dispersion. In consequence ofthis, the position of work piece 14 also disperses and there was a casein that the required accuracy could not be maintained. Commonly thevolume shrinkage rate of ultraviolet curing adhesive material is in arange from 5 to 10 percent. Presuming a case that the volume shrinkagerate is 7%, it Finks about 2% in each respective three directions whenthe hardening shape of adhesive material is cubic.

[0022] In consequence of this, when the difference in a level of about0.5 mm occurs in the film thickness of adhesive material, it causes thatabout 10 μm of differences in the shrinkage after hardened, occur inrespective directions. In a case when the objects to be fixed are madeby an injection molding of the resin, there can be a case in that abovedescribed dispersion of film thickness A+C becomes more than 0.5 mm,there is enough possibility that the positional discrepancy becomes afatal problem.

[0023] As above described, because there may happen a case that therequired accuracy of fixing position for an ink jet work piece is notmaintained by the prior caulking adhering method, a yield in productionline is made decreased or there must be a disposal for scrapping of theobjects fixed, which is not good in accuracy of fixing, then they makesproblem happened that costs for production are increased.

[0024] To solve this kind of problems, there is a technique disclosed inJapanese Laid Open Patent Hei 10(1998)-309801.

[0025] This member mounting structure is arranged in that lying anintermediate holding member between a work piece and a work pieceholding member and then fixing the intermediate holding member onto thework piece by an adhesive material and at the same time, fixing theintermediate holding member onto the work piece holding member throughthe adhesive material. Because of this lying structure of theintermediate holding member between the work piece and the work pieceholding member, by means of only controlling to make minimum fornecessity and constant the film thickness of the adhesive materialsthose are used for a space between the adhered surfaces of the workpiece and the intermediate holding member, and used for a space betweenthe adhered surfaces of the work piece holding member and theintermediate holding member, this technology can achieve to attach thework piece onto the work piece holding member with high accuracy, and tokeep high yield of production and at the same time, to preventoccurrence of decrease in fixing force of the work piece afterproduction without controlling the positional accuracy of adhering pointof the work piece and the work holding member.

[0026] However, the above described technique has still problem to beimproved when it is applied to a case that a solid state image inputunit is the work piece and a solid state image input unit holding memberis the work piece holding device and an intermediate holding member islying through adhesive material between the solid state image input unitand the work piece holding member, because it has not a concretestructure in order to enable the high accuracy attachment of the solidstate image input unit after the easy positioning adjustment in fiveaxes of the solid state image input unit, in the positioning adjustmentof the solid state image input unit before fixing by the adhesivematerial, a line image fixed by an image forming lens unit is positionedon the solid state image input unit and an optical characteristics ofthem are measured with a required predetermined accuracy, and to preventan occurrence of decrease in fixing force of the solid state image inputunit after production.

[0027] In consequence of this, it is an object of the present inventionto provide a mounting structure for mounting a solid state image inputunit by which mounting of the solid state image input unit is enable toeasily achieve a positioning adjustment in the five axes of the membersof solid state image input unit with high accuracy after positioningadjustment has done in the five axes before fixing the solid state imageinput unit by adhesive material, and an image data input unit and animage forming apparatus which are made with the mounting structure.

SUMMARY OF THE INVENTION

[0028] In consequence of this, it is an object of the present inventionto provide a mounting structure for mounting a solid state image inputunit by we mounting of the solid state image input unit is enable toeasily achieve a positioning adjustment in the five axes of the membersof solid state image input unit with high accuracy after positioningadjustment has done in the five axes before fixing the solid state imageinput unit by adhesive material, and an image data input unit and animage forming apparatus which are made with the mounting structure.

[0029] To solve the above stated object, according to a first aspect ofthe present invention, a member mounting structure comprises: a firstmember; a second member on which a plurality of acting members aredisposed along a line; and an intermediate holding member for holdingthe second member so as to oppose to the first member. The first memberand the intermediate holding member are fixed by adhesive material; andat the same time, the second member and the intermediate holding memberare fixed by adhesive material. The intermediate holding member isdisposed so that a first adhered surface between the first member andthe intermediate holding member, and a second adhered surface betweenthe second member and the intermediate holding member are arrangedparallely with the disposed direction of the plurality of acting membersand at the same time, the first and second adhered surfaces are arrangedto make a right angle.

[0030] In the structure when a positioning adjustment of the firstmember 101 and the second member 102 is performed, a positioningadjustment along X, Y and γ axes can be achieved by means thatintermediate holding member 103 is slid parallely wit reference to theadhered surface of the first member 101, and a positioning adjustmentalong X, Z and β axes can be achieved by means that second member 102 isslid parallely with reference to the adhered surface of the intermediateholding member 103. As a result of this, the positioning adjustment withmicro movement along only five direction of X, Y, Z, β and γ axes exceptaround X axis, can be easily achieved.

[0031] In other words, by means that the first adhered surface A betweenthe first member 101 and the intermediate holding member 103, and thesecond adhered surface B between the second member 102 and theintermediate holding member 103 become parallel with the direction inwhich plurality of acting members of the second member 102 are disposed,and at the same time, the first adhered surface A and the second adheredsurface B are arranged to make a right angle, positioning adjustment indirection along only five axes of X, Y, Z, β and γ can easily beadjusted so that the positioning adjustment along the X axis is notachieved in positive manner.

[0032] At this time, the reason why an adjustment of rotational axisaround X axis is not performed is that the distances between the firstmember and the second member become not different without adjustmentaround X axis even when the adjustment around the X axis is notperformed, because the X axis is located along (in parallel to) adirection of the line of the acting members in comparison with that theadjustments around the β axis and γ cause deteriorate the accuracy ofoptical characteristics because the distances between the first memberand the second member become different when the adjustment of the β axisand γ axis around the Y is and Z its are not performed.

[0033] After the positioning adjustment along five axes is completed themounting of the second member is performed with high precision and yieldof the process can get higher by means that thickness of the adhesivematerials which are applied to the adhered surface between the secondmember and the intermediate holding member and the adhered surfacebetween the first member and the intermediate holding member arecontrolled in the minimum requirement and constant value, and apositional accuracy of the adhered portions of second member and thefirst member do not have to be strictly controlled because theintermediate holding member is equipped between the second member andthe first member, and at the same time, it can be prevented that anoccurrence of deterioration in a fixing forth of the second member afterthe second member has been completed (after the adhesive material ishardened).

[0034] To solve the above stated object, according to a second aspect ofthe present invention, a mounting structure according to the firstaspect wherein said second member comprising a disposing member on whichsaid acting members are disposed, a substrate on which said disposingmember is mounted, and a supporting member for attaching and detachingto support detachably said substrate, is provided is provided.

[0035] In such case, the second member can be ritualized again becausethe second member can be removed from the detachable supporting memberwhen defective product in adhesion is made in mounting process at thefirst adhered surface or the second adhered surface or at both adheredsurfaces.

[0036] To solve the above stated object, according to a third aspect ofthe present invention, a mounting structure according to first aspect ofinvention wherein said second member comprising a disposing member onwhich said acting members are disposed, and a supporting member forattaching and detaching to support detachably said substrate isprovided.

[0037] In such case, the second member can be ritualized again becausethe second member cad be removed from the detachable supporting memberwhen defective product in adhesion is made in mounting process at thefirst adhered surface or the second adhered surface or at both adheredsurfaces.

[0038] Also to achieve the above stated object, according to a fourthaspect of the present invention, a mounting structure according to thefirst aspect of the present invention wherein said structure furthercomprising a substrate on which said second member is mounted, and saidsubstrate has a through hole to be penetrated by a part of saidintermediate holding member when said second member is fixed on saidintermediate holding member is provided.

[0039] In such case in positioning adjustment for the second adheredsurface, the accurate positioning adjustment can be achieved whenpositioning adjustment of longer distance is required than a thicknessof the second member and a width of space between the second member andthe substrate on which the second member is mounted, because a longeradjustment space can be secured in Z direction by means that the secondadhered surface is extending in direction of Z axis.

[0040] Further to achieve the above stated object, according to a fifthaspect of the present invention, a mounting structure according to thefirst aspect of the present invention wherein said structure furthercomprising a substrate on which said second member is mounted, and saidsecond member is arranged so that said substrate does not abut on a partof said intermediate holding member when said second member is moved ina direction toward said first adhered surface to be fixed on saidintermediate holding member is provided.

[0041] In such case in positioning adjustment for the second adheredsurface, the accurate positioning adjustment can be achieved whenpositioning adjustment of longer distance is required than a width ofthe second member and a length of space between the second member andthe substrate on which the second member is mounted, because a longeradjustment space can be secured in Z direction by means that the secondadhered surface is extending in direction of Z axis.

[0042] Still further to achieve the above stated object, according to asixth aspect of the present invention, a mounting structure according toclaim 1 wherein said first member has a adjusting member to adjust adistance between opposing surfaces of said first member and said secondmember is provided.

[0043] In such case when the positioning adjustment cannot be completedby only a positioning adjustment of the second member, the accuratepositioning adjustment can be achieved because the positioningadjustment for first member and second member can be achieved in Zdirection.

[0044] Yet further to achieve the above stated object, according to aseventh aspect of the present invention, a mounting structure accordingto first aspect of the present invention wherein said first adheredsurface crossed with an optical axis with right angle and a height ofthe optical axis is located between a width of said first adheredsurface in vertical direction is provided.

[0045] In such a case a shrinkage at the intermediate holding member istransformed to a movement to come nearer (a slide) to the first memberand the second member with regard to an effect of hardening shrinkagewhich occurs at a hardening of the adhesive material, the positionaldiscrepancy at the second member itself can be suppressed and the firstmember can be located with high accuracy in relation to the secondmember.

[0046] Moreover, the whole structure can get a micro movement to adjustits position along the respective the directions of X, Y, Z, β and γaxes by means that sliding adjustments are performed in the two surfacesbeing right angle each other (the first adhered surface A and the secondadhered surface B).

[0047] Further again, the whole parts of structure can be contained inthe minimum required space and occurrence of a restriction for thelayout can be prevented because the first adhered surface and the secondadhered surface can be included within the vertical range within thefundamental restricted area on the layout by means that the firstadhered surface and the optical axis are located in the same height whenviewing along the X direction.

[0048] According to a eight aspect, the present invention ischaracterized by that plurality of said intermediate holding member aredisposed and at least a pair of said intermediate holding member holdtogether said second member.

[0049] In such case, the structure can be much stronger to the externalforce and the mechanical vibration than a structure with the same numberof intermediate holding member which are located all the same side.

[0050] Yet further to achieve the above stated object, according to aninth aspect of the present invention, a mounting apparatus havingmembers with a structure according to the first aspect of the presentinvention in which said first member is a holding member to hold a imageforming lens unit, said second member is solid state input unit whichphotoelectric converting image focused by said image forming lens unit,said apparatus comprising: a light source; an image for positioningadjustment illuminated by said light source for generating image toperform positioning adjustment of said solid state image input unit; anda fixing operation portion holding members having said structureaccording to claim 1 performing positioning adjustment of image forminglens unit and solid state image input unit and ring them, wherein saidimage for positioning adjustment is focused on said solid state imageinput unit through image forming lens unit, and calculating relativeposition of image forming lens unit and solid state image input unitbased on photoelectric converted focused data is provided.

[0051] In such case, the positioning adjustment can be accuratelyachieved even when the fluctuation of corrugate length happens at theimage forming lens unit because a width can be set to adjust the widthof error along Z axis.

BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Hereinafter embodiments of the present invention will bedescribed with reference to the drawings attached.

[0053]FIG. 1 is an elevation view to show the present invention.

[0054]FIG. 2s are perspective view (a) and elevation view (b) to show afirst embodiment of the mounting structure for members of solid stateimage input unit according to the present invention.

[0055]FIG. 3(a) is a elevation view to show the combined relation of aframe, an intermediate holding member and the solid state image inputunit utilized in the first embodiment, and FIG. 3(b) is a rough sketchof front view of the solid state image input unit.

[0056]FIG. 4(a) is a elevation view to show another combined relation ofthe frame, the intermediate holding member and the solid state imageinput unit utilized in the first embodiment, and FIG. 4(b) is aelevation view of an intermediate holding member with another shape.

[0057]FIG. 5(a) is a elevation view to show the combined relation of aframe, an intermediate holding member and the solid state image inputunit utilized in a second embodiment, and FIG. 5(b) is a cross sectionalview of FIG. 5(a) cut along the line O-O′.

[0058]FIG. 6(a) is a elevation view to show the combined relation of theframe, the intermediate holding member and the solid state image inputunit which are mounted directly to a detachable holding member utilizedin the second embodiment, and FIG. 6(b) is a cross sectional view ofFIG. 6(a) cut along the line P-P′.

[0059]FIG. 7 is a elevation view to show a width of adjustable rangewhen the solid state image input unit of a third embodiment according tothe present invention is mounted on the intermediate holding member.

[0060]FIG. 8 is an elevation view to show the combined relation of aframe, an intermediate holding member and the solid state image inputunit utilized in a third embodiment according to the present invention.

[0061]FIG. 9 is a cross sectional view to show the combined relation ofthe frame, the intermediate holding member and the solid state imageinput unit utilized in a third embodiment according to the presentinvention.

[0062]FIG. 10s are views to show another combined relation of a frame,an intermediate holding member and the solid state image input unitutilized in a fourth embodiment according to the present invention, FIG.10(a) is a plan view and FIG. 10(b) is a elevation view.

[0063]FIG. 11 is an elevation view of the mounting apparatus for solidstate image input unit of the fifth embodiment according to the presentinvention.

[0064]FIG. 12 is a block diagram of a control unit for me mountingapparatus of fifth embodiment according to the present invention.

[0065]FIG. 13 is a flow chart to show an operation of the mountingapparatus of fifth embodiment according to the present invention.

[0066]FIG. 14 is a perspective view to show a mounting structure ofmembers for solid state image input unit according to the presentinvention.

[0067]FIG. 15 is in elevation view to show a mounting structure ofmembers for solid state image input unit according to the presentinvention.

[0068]FIG. 16 is an enlarged view of the relevant part in FIG. 15.

[0069]FIG. 17a are views to show the combined relation of a frame, anintermediate holding member and the solid state image input unitutilized in a seventh embodiment according to the present invention,FIG. 17(a) is a plan view, FIG. 17(b) is a elevation view and FIG. 17(c)is a front view to show a state that the intermediate holding member isadhered onto a frame.

[0070]FIG. 18s are elevation views of layout of the intermediate holdingmember, FIG. 18(a) shows a layout in which they are arranged parallely,and FIG. 18(b) shows a layout in which they are arranged in opposingposition.

[0071]FIG. 19 is a perspective view to show the intermediate holdingmember for mounting structure for members and mounting apparatus formembers of eighth embodiment according to the present invention.

[0072]FIG. 20 is an exploded perspective view to show the intermediateholding member for mounting structure for members and mounting apparatusfor members of ninth embodiment according to the present invention.

[0073]FIG. 21 is an exploded perspective view to show anotherintermediate holding member for mounting structure for members andmounting apparatus for members of ninth embodiment according to thepresent invention.

[0074]FIG. 22 is a front view to show a model of beam shape when a firstadhered surface onto which adheres the intermediate holding member andthe holding member locates outside of the space.

[0075]FIG. 23 is a front view to a model of beam shape when thestructure of FIG. 20 which is one example of mounting structure forsolid state image input unit in the ninth embodiment or the structure ofFIG. 21 which is another example of mounting structure for solid stateimage input unit in the ninth embodiment is assimilated in the samemanner.

[0076]FIG. 24 is an enlarged view of the relevant part in FIG. 20.

[0077]FIG. 25 is an enlarged view of the relevant part in FIG. 21.

[0078]FIG. 26s are perspective views to show a tenth embodiment of themounting structure for members of solid state image input unit accordingto the present invention, FIG. 26(a) is an exploded perspective view ofthe mounting structure and FIG. 26(b) is a rough sketch of theperspective view of the mounting structure.

[0079]FIG. 27(a) is a elevation view of the mounting structure of tenthembodiment, FIG. 27(b) is a elevation view to show the combined relationof the frame, the intermediate holding member and the solid state imageinput unit, and FIG. 27(c) is a rough sketch of front view of the solidstate image input unit of it.

[0080]FIG. 28(a) is a perspective view of another mounting structure,FIG. 28(b) is a perspective view of other mounting structure differentfrom FIG. 28(a).

[0081]FIG. 29 is an exploded perspective view to show one example ofmounting structure for solid state image input unit according toeleventh embodiment of the present invention.

[0082]FIG. 30 is an exploded perspective view to show another example ofmounting structure for solid state image input unit according toeleventh embodiment of the present invention.

[0083]FIG. 31 is an exploded perspective view to show other example ofmounting structure for solid state image input unit according toeleventh embodiment of the present invention.

[0084]FIG. 32 is a cross sectional view to show a first example ofmounting structure of a chit board and a spacer of the eleventhembodiment of the present invention.

[0085]FIG. 33 is a cross sectional view to show a second example ofmounting structure of a circuit board and a spacer of the eleventhembodiment of the present invention.

[0086]FIG. 34 is a cross sectional view to show a third example ofmounting structure of a circuit board and a spacer of the eleventhembodiment of the present invention.

[0087]FIG. 35 is a perspective view to show one example of mountingstructure for solid state image input unit according to twelfthembodiment of the present invention.

[0088]FIG. 36 is a enlarged view of the relevant part of FIG. 35.

[0089]FIG. 37 is a perspective view of the intermediate holding memberutilized in an embodiment shown in FIGS. 35 and 36.

[0090]FIG. 38 is an exploded perspective view to show one example ofmounting structure for solid state image input unit according tothirteenth embodiment of the present invention.

[0091]FIG. 39 is a perspective view to show one example of mountingstructure for solid state image input unit according to thirteenthembodiment of the present invention.

[0092]FIG. 40 is an enlarged perspective view of circumference of thesolid state image input unit shown in FIGS. 38 and 39.

[0093]FIG. 41 is a front view of one example of the solid state imageinput unit mounted on a substrate.

[0094]FIG. 42 is a structural diagram to hold the solid state imageinput unit.

[0095]FIG. 43s elevation views to show an effect of the mountingstructure for solid state image input unit of the thirteenth embodiment,FIG. 13(a) shows before a deformation begins and FIG. 13(b) shows afterthe deformation began.

[0096]FIG. 44s are elevation views to show an effect of the mountingstructure for solid state image input unit of a referential embodiment,FIG. 13(a) shows before a deformation begins and FIG. 13(b) showsanother the deformation began.

[0097]FIG. 45 is a front view to show another example of the solid stateimage input unit mounted on the substrate.

[0098]FIG. 46 is a plan view to show an optical positional relationbetween the a material body, the image forming lens unit and the solidstate image input unit in the prior art technology.

[0099]FIG. 47 is a perspective view to show a five axes coordinate ofthe solid state image input unit and the image forming lens unit.

[0100]FIG. 48 is a rough sketch of front view of the solid state imageinput unit in the prior art technology.

[0101]FIG. 49(a) and 49(b) are elevation views to show a mountingprocess of a work piece in the prior art technology,

[0102]FIG. 50s are views to show a model of caulking adhesion method,FIG. 50(a) is a plan view and FIG. 50(b) is a cross sectional view cutalong the line H -H line.

[0103]FIG. 51 is a cross sectional view to show a fundamental structureof the CerDIP type solid state image input unit.

[0104]FIG. 52 is a cross sectional view to show one example of themounting structure for members of the solid state image input unitaccording to a fourteenth embodiment of the present invention.

[0105]FIG. 53 is a cross sectional view to show one example of mountingstructure of the CerDIP type solid state image input unit according to afifteenth embodiment of He present invention.

[0106]FIG. 54s are cross sectional views to show one example of mountingstructure of the CerDIP type solid state image input unit according to asixteenth embodiment of the present invention, FIG. 54(a) shows anexample in which the intermediate holding member is adhered in a portionof base side, FIG. 54(b) shows an example in which the intermediateholding member is adhered in a portion of wind frame side.

[0107]FIG. 55s are cross sectional views to show one example of mountingstructure of the CerDIP type solid state image input unit according to aseventeenth embodiment of the present invention, FIG. 55(a) shows anexample of a case in which a base protrudes from other portions, FIG.55(b) shows an example of a case in which a wind frame protrudes fromother portions, and FIG. 55(c) shows an example of case in which thebase and the wind frame protrude with constituting a surface from otherportions.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0108] Hereinafter the preferred embodiments of the present inventionwill be described in detail with reference to the accompanied drawings.

[0109] [First Embodiment]

[0110] FIGS. 2-4 are views to show a first embodiment of the mountingstructure for members and a mounting apparatus for members according tothe present invention, this mounting structure for members can beapplied to the image read out apparatus such as a copying machine, afacsimile machine, an image scanner and so on, and the image formingapparatus such as printing apparatus and so on.

[0111] Firstly, a configuration will be explained. In FIGS. 2 and 3, areference numeral 21 denotes a frame, which is formed in letter “L”shape and is composed of a horizontal portion 21 a and a verticalportion 21 b, the frame 21 constitutes a first member according to thepresent invention.

[0112] A V shaped ditch 24 is formed on the horizontal portion 21 a andan image forming lens unit 25 is located on the V shaped ditch 24. Theimage forming lens unit 25 is made to form an image of document onrespective pixel lines 22 a, 22 b, 22 c composed by respective solidstate image input unit 22 which is combined photoelectric convertingdevices such as CCD aligned in every RGB respectively separated, and thelens unit is fixed on the horizontal portion 21 a by a lens fixture 26.

[0113] An aperture portion 27 is formed in the vertical portion 21 b,and the aperture portion 27 is made to guide line images converged bythe image forming lens unit 25 to the respective pixel lines 22 a, 22 b,22 c of the solid state image input unit.

[0114] In the solid state image input unit 22, the pixel lines 22 a, 22b, 22 c composed with the photoelectric converting devices, are alignedin lines, and the solid state image input unit 22 is held so as for thepixel lines 22 a, 22 b, 22 c to face to the image forming lens unit 25by an intermediate holding member 23. The solid state image input unit22 and the pixel lines 22 a, 22 b, 22 c constitute respectively a secondmember and operating member according to the present invention.

[0115] At this point, in FIGS. 2 and 3 a reference numeral 28 denotes anaxis of lens unit, and it corresponds to a Z axis of the coordinateutilized in this system. Also, X axis direction extends along a mainscanning direction of the image read out apparatus, and Y axis directionextends along a secondary scanning direction.

[0116] Further, a circuit board 29 is attached to the solid state imageinput unit 22, the circuit board 29 processes electric output signalfrom the solid state image input unit 22 according to the focusedoptical image and output it to an image readout apparatus while drivingthe solid state image input unit 22.

[0117] In the mean time the intermediate holding member 23 is formed tobe an L shaped of a material through which ultraviolet can pass. Theintermediate holding member 23 is fixed on the vertical portion 21 b andthe solid state image input unit 22 respectively by an ultravioletcuring adhesive material 30, 31. The intermediate holding member 23 isarranged between the vertical portion 21 b and the solid state imageinput unit 22 so that an adhered surface A between the vertical portion21 b and the intermediate holding portion 23 (hereafter referred to as afirst adhered surface) and an adhered surface B between the solid stateimage input unit 22 and the intermediate holding member 23 (hereafterreferred to as a second adhered surface) become surfaces parallel to thepixel line 22 a, 22 b, 22 c and at the same time, the first adheredsurface and the second adhered surface become a right angle direction.

[0118] Hereinafter positioning adjustment method for the solid stateimage input unit 22 will be described.

[0119] Adhesive material 30, 31 is painted by a solid state image inputunit mounting apparatus (not shown) on the two surfaces A ad B of theintermediate holding member which cross at right angle each other. Atthis moment, after thickness of the adhesive material 30, 31 ismonitored and adjusted by a camera (not shown) so that the thickness ofthe adhesive material become constant, the intermediate holding member23 is attached onto the vertical portion 21 b and at the same time, thesolid state image input unit 22 is attached to the intermediate holdingmember 23 by the mounting apparatus.

[0120] Then, a line image focused by the image forming lens unit 25 islocated on the solid state image input unit 22, and at the game time,operations to read out the optical characteristics (focus, magnificationand so on) with a predetermined accuracy is performed. At this momentthe positioning adjustment of solid state image input unit 22 isachieved while the data of optical characteristics which are transformedthrough photoelectric conversion by the solid state image input unit 22are monitored.

[0121] At first, when in a case to achieve positioning adjustment alongX axis direction, the solid state image input unit 22 is held grippinglyby a chuck and so on so that the solid state image input unit 22 is madeto slide on the adhesive material 31, and positioning adjustment isachieved. In this case, a slidable portion at the adjusting operationoccurs at only one due to a difference of surface tension because anadhered surface area of the adhesive material 31 is small in comparisonwith that of the adhesive material 30 as shown in FIG. 3(a).

[0122] However, when the adjusting operation along X axis direction isperformed, it is no problem that both of the intermediate holding member23 and the solid state image input unit 22 make sliding motions via theadhesive material 30.

[0123] Further, when in a case to achieve positioning adjustment on βaxis around Y axis, the solid state image input unit 22 is heldgrippingly by a chuck and so on so that the solid state image input unit22 is made to slide on the adhesive material 31.

[0124] Also, when in a case to thieve positioning adjustment along Yaxis direction, the intermediate holding member 23 is held grippingly bya chuck and so on so that both of the solid state image input unit 22and the intermediate holding member 23 are made to slide at the sametime, on the adhesive material 30.

[0125] In addition, when in a case to achieve positioning adjustmentalong Z axis direction, the solid state image input unit 22 is heldgrippingly by a chuck and so on so that the solid state image input unit22 is made to slide at the same time, on the adhesive material 31.

[0126] More over, when in a case to achieve positioning adjustment on γaxis around Z axis, the intermediate holding member 23 is heldgrippingly by a chuck and so on so that the solid state image input unit22 and the intermediate holding member 23 are made to slide on theadhesive material 30.

[0127] In this embodiment the respective motions of X, Y, Z, β and γ canbe independently performed for every axis, and the sliding motions toadjust the intermediate hold member 23 and the solid state image inputunit 22 can he agreed with the Cartesian coordinate direction becausethe intermediate holding member 23 is arranged between the frame 21 andthe solid state image input unit 22 so that the first adhered surface Aand the second adhered surface B crosses at right angle.

[0128] At this time, the reason why an adjustment of rotational axisaround X axis is not performed is that the distances between the imageforming lens unit 25 and respective pixels of the solid state imageinput unit 22 become not different without adjustment around X axis evenwhen the adjustment around the X axis is not performed, because the Xaxis is located along (in parallel to) a direction of the line of pixels22 a-22 c in comparison with that the adjustments around the β axis andγ axis cause deteriorate the accuracy of optical characteristics becausethe distances between the image forming lens unit 25 and respectivepixels of the solid state image input unit 22 become different when theadjustment of the β and γ as around the Y axis and Z axis are notperformed.

[0129] As described above, the positioning adjustment of solid stateimage input unit 22 is performed and when a judgment that the opticalcharacteristics get satisfied a level within the predetermined accuracy,has been made through output from the monitor, the adhesive materials30, 31 are hardened all at once with an irradiation of the ultravioletthrough the intermediate holding member 23 from vertical directions tothe surfaces to be adhered at all area to be adhered of the adhesivematerials 30, 31, by an ultraviolet irradiating light (not shown).

[0130] As described above, in this embodiment because the intermediatedholding member 23 is arranged between the vertical portion 21 b and thesolid state image input unit 22 so, that the first adhered surface A andthe second adhered surface B are parallelized with the pixel line 22a-22 c of solid state image input unit 22 and at the same time, thefirst adhered surface A and the second adhered surface B are squaredtogether in their directions, the positioning adjustment in directionalong three axes of X, Y, and γ can be achieved by means that theintermediate holding member 23 is slid in parallel with the adheredsurface of frame 21 before the solid state image input unit 22 isadhered and fixed, and the positioning adjustment in direction alongthree axes of X, Z, and β can be achieved by means that the solid stateimage input unit 22 is slid in parallel with the adhered surface ofintermediate holding member 23. As a result of this, the positioningadjustment as micro movement only along the five direction of X, Y, Z, βand γ axes can be easily achieved other than a direction around X axis.

[0131] In other words, by means that the intermediate holding member 23is arranged so that the first adhered surface A between frame 21 andintermediate holding member 23, and the second adhered surface B betweensolid state image input unit 22 and intermediate holding member 23 areparallelized with the pixel lines 22 a-22 c of solid state image inputunit 22 and at the same time, the first adhered surface A and the secondadhered surface B are squared together in their directions, thepositional arrangement in direction along only five axes of X, Y, Z, βand γ can easily be adjusted so that the positioning adjustment alongthe X axis is not achieved in positive manner.

[0132] In addition, after the positioning adjustment along five axes iscompleted the mounting of solid state image input unit 22 is performedwith high precision and yield of the process can get higher by meansthat thickness of the adhesive materials 30, 31 which are applied to thefirst adhered surface A and the second adhered surface B are controlledin the minimum requirement and constant value, and a positional accuracyof the adhered portions of solid state image input unit 22 and frame 21do not have to be strictly controlled because the intermediate holdingmember 23 is equipped between the solid state image input unit 22 andthe frame 21, and at the same time, it can be prevented that anoccurrence of deterioration in a fixing forth of the solid state imageinput unit 22 after the solid state image input unit has been completed(after the adhesive material is hardened).

[0133] A time required to harden the adhesive materials 30, 31 can beshortened and a productivity can be increased because the adhesivematerial 30, 31 are selected from ultraviolet curing adhesive materialsand the intermediate holding member 23 is made of a material which canpass ultraviolet through so that the ultraviolet can be irradiate ontothe ultraviolet adhesive material through the intermediate holdingmember 23, and the ultraviolet can be irradiated all at once onto all ofthe adhered surfaces tough the intermediate holding member 23 fromvertical directions.

[0134] At this point, the thickness of adhesive material 30, 31 are thethinner the better in order to decrease an influence of the shrinkagewhen hardened. However, it actually happens a necessity that thethickness are arranged to cover a difference between concavity andconvexity of the surface in accordance with the flatness of the solidstate image input unit 22 and the frame 21.

[0135] Though the intermediate holding member 23 is positioned at anupper side of the solid state image input unit 22 in this embodiment,quite the same effect can be attained when the intermediate holdingmember 23 is positioned at an lower side of the solid state image inputunit 22 as shown in FIG. 5(a) without limiting only to the upper side.

[0136] In addition, the intermediate holding member 23 may be designedin a triangle shape without limiting to the L shape as denoted inreference numeral 41 in FIG. 5(b). In such case, a rigidity of theintermediate holding member 41 itself can be increased.

[0137] [Second Embodiment]

[0138]FIG. 5 is a diagram to show a second embodiment according to thepresent invention, and the mounting structure of these members can beapplied to the image read out apparatus such as a copying machine, afacsimile machine, an image scanner and so on, and the image formingapparatus such as printing apparatus and so on as well as the firstembodiment.

[0139] At this times though the solid state image input unit is fixed onthe intermediate holding member at the second adhered surface B in thefirst embodiment, the solid state image input unit in this embodiment isarranged to be fixed on the intermediate holding member through adetachable holding member and other configuration is quite the same asthat of the first embodiment, on that account the same members are giventhe same reference numerals and detailed explanation will be omitted.

[0140] Moreover in this embodiment, the solid state image input unitconstitutes a disposed member according to the present invention, andthe solid state image input unit, a substrate and a detachablesupporting member constitute a second member according to the presentinvention.

[0141] Further in this embodiment, the intermediate holding member 23 isprovided in two pieces as 23 a and 23 b and at the same time, both thefirst adhered surface A and the second adhered surface B are provided intwo surfaces as the first ads A, A′ and B, B′.

[0142] In FIG. 6 the detachable holding member 50 has a rectangularconfiguration having at the interior thereof a rectangularparallelepiped hole and penetrated opposing surfaces (hereinafterreferred to as penetrating surfaces). At one of the surface ofpenetrating surface a circuit board 29 is inserted and the solid stateimage input unit 22 is mounted on the circuit board 29, and the circuitboard 29 is Longed to be fixed with screws and screw holes 51 a, 51 bfor them made on the detachable holding member 50. The fixing withscrews and screw holes may be performed in a usual accuracy of the screwfixation and it is need not to be performed in especially high accuracy.

[0143] The detachable holding member 50 is adhered and fixed onto theintermediate holding member 23 a, 23 b so that the first adhered surfaceA, A′ and the second adhered surface B, B′ are parallelized with thepixel line 22 a-22 c of solid state image input unit 22 which is fixedonto the detachable holding member 50 and at the same time, the firstadhered surface A, A′ and the second adhered surface B, B′ are squaredtogether in their directions as well as the fixing method between thesolid state image input unit 22 and the intermediate holding member 23of the first embodiment.

[0144] As a result of this, it is designed to direct the line imageswhich is converged by the image forming lens unit 26 from anothersurface of the penetrating surface of detachable holding member 50 torespective pixel lines 22 a, 22 b, 22 c.

[0145] As the positioning adjustment for the solid state image inputunit 22, the circuit board 29 is mounted on the detachable holdingmember 50 and at the same time, solid state image input unit 22 ismounted on the circuit board 29, the positioning adjustment ofintermediate holding member 23 on which the solid state image input unit22 is mounted, is achieved along each direction of X axis, Y axis and βaxis and positioning of the intermediate holding member 23 is settledwhile monitoring the data of optical characteristics transformed throughphotoelectric conversion by the solid state image input unit 22 as wellas the mounting method of the first embodiment.

[0146] As described above in this embodiment, in addition to the sameeffects of the first embodiment can he attained, that are being able toadjust easily only along the five directions, being able to mount thesolid state image input unit 22 with higher accuracy, being able to gethigher yield of the process, and being able to prevent an occurrence ofdeterioration in a fixing forth of the, solid state image input unit 22after the solid state image input unit has been completed (after theadhesive material is hardened), the solid state image input unit 22 canbe removed from the detachable holding member 50 even when thepositional adjustment between the solid state image input unit 22 andthe image forming lens unit 25 cannot be successfully achieved becausethe circuit board 29 onto which solid state image input unit 22 ismounted, is fixed by screws within the detachable holding member 50.

[0147] The screw fixation does not need any higher accuracy and thesolid state image input unit 22 can be mounted easily onto thedetachable holding member 50 because the positioning adjustment solidstate image input unit 22 can be performed after the screws fixationwhen the circuit board 29 is fixed by screws onto detachable holdingmember 50.

[0148] Though the solid state image input unit 22 is mounted onto thecircuit board 29 and the circuit board 29 is fixed onto the detachableholding member 50 utilizing two screws in this embodiment, the solidstate image input unit 22 may be fixed directly from outside of a frameof the detachable holding member 50 by means of three screws 52 a, 53 b,53 c so as to abut on two inner walls 52 a, 52 b of the detachableholding member 50 as shown in FIG. 6.

[0149] Further, screw fixations are utilized when the circuit board 29is mounted onto the detachable holding member 50 and when the solidstate image input unit 22 is directly fixed onto the detachable holdingmember 50 as described in above in this embodiment, a snap fit may beutilized to fix them.

[0150] The fixing portions for screw fixation and snap fit are notlimited as described above when the circuit board 29 and solid stateimage input unit 22 are fixed onto the detachable holding member 50utilizing screw fixation or snap fit as described above.

[0151] [Third Embodiment]

[0152] FIGS. 7-9 are diagram to show a third embodiment of the mountingstructure for members and mounting apparatus for members according tothe present invention, and the mounting structure of these members canbe applied to the image read out apparatus such as a copying machine, afacsimile machine, an image scanner and so on, and the image formingapparatus such as printing apparatus and so on as well as the firstembodiment.

[0153] At this point in the first embodiment though the solid stateimage input unit and the frame are fixed with one intermediate holdingmember at the first adhered surface A and the second adhered surface B,in this embodiment the solid state image input unit and the frame arefixed with two intermediate holding members as well as the secondembodiment, and the intermediate holding members penetrates the circuitboard on which the solid state image input unit is mounted.

[0154] Ordinarily, an fluctuation for position of an imaging surface toimage forming lens unit is about some tens micro meters in an opticalsystem where shrinkage can be happen, on the other hand an fluctuationfor position of an object surface to image forming lens unit is aboutsome millimeters (hereinafter refereed to as fluctuation of conjugatelength) accordingly when this fluctuation of conjugate length happens,positions of the image forming lens unit and the solid state image inputunit must be adjusted in a range of some millimeters along the opticalaxis.

[0155] When the image forming lens unit is slid on the frame, thepositioning adjustment is possible if the frame has a surface on whichthe image forming lens unit slides. However, when the positioningadjustment of solid state image input unit is achieved in a range ofsome millimeters, the positioning adjustment can be achieved in a rangeuntil the intermediate holding member abuts on the circuit board in theside of image forming lens unit, and in a range that adhering area forfixing of the solid state image input unit can be kept in the oppositeside of the image forming lens unit.

[0156] This range can be sum of a board thickness t and a space betweenthe solid state image input unit 22 and the circuit board 29 Δh, that ist+Δh at the longest as shown in FIG. 7. Ordinarily, t is about 2-3 mmand Δh is about a level of 1 millimeter, and it is designed that theycannot be got longer because of a noise problem.

[0157] By this reason, the adjustable range is a level of about ±2 mm asdescribed above, usually a space for adhesion is required a level ofabout 1-2 mm then the positioning adjustment range becomes substantiallya level of ±1 mm,

[0158] It is general that the fluctuation of conjugate length is, thoughdifferent in the image forming lens unit, usually a level of +2-5 mm,when the fluctuation of conjugate length of over 2 mm is adjusted, awidth of adjustable range is too small in a structure such as the firstembodiment and the positional adjustment cannot be achieved beforefixing because the intermediate holding member 23 abuts on the circuitboard 29 or the space area for adhesion cannot be ensured.

[0159] This embodiment is characterized by that the positioningadjustment along Z axis is took into consideration, and otherconfiguration is quite the same as the first embodiment and the samereference numerals are given to the same members and detailedexplanation will be omitted.

[0160] The second adhered surfaces B, B′ between the intermediateholding member 23 a, 23 b and the solid state image input unit 22, havea length L and penetrating the circuit board 29 as shown in FIG. 8 andFIG. 9.

[0161] Also, the circuit board 29 has a through hole 60 a, 60 b whichpenetrates the intermediate holding member 23 a, 23 b as a center ofheight that the solid state image input unit 22 is fixed onto theintermediate holding member 23.

[0162] By this configuration, the solid state image input unit 22 whichis fixed on the circuit board 29, is made slidable along Z axis on thesecond adhered surface B, B′ of intermediate holding member 23 a, 23 bwhen the positioning adjustment is performed.

[0163] The slidable range of solid state image input unit 22 at thismoment is l1+l2+2×t−a space for adhesion as shown in FIG. 8. Accordinglywhen the slidable range (l1+l2+2×t−the space for adhesion) is set lagerthan the fluctuation of conjugate length of the image forming lens unit25, the solid state image input unit 22 can be mounted accurately if thefluctuation of conjugate length happens.

[0164] As described above in this embodiment, in addition to the sameeffects of the first embodiment can be attained, that are being able toadjust easily only along the five directions, being able to mount thesolid state image input unit 22 with higher accuracy, being able to gethigher yield of the process, and being able to prevent an occurrence ofdeterioration in a fixing forth of the solid state image input unit 22after the solid state image input unit 22 has been completed (after theadhesive material is hardened), the positioning adjustment can beaccurately achieved even when the fluctuation of conjugate lengthhappens at the image forming lens unit 25 because a width can be set toadjust the width of error along Z axis.

[0165] At this point, the through hole 60 a, 60 b may be in a shape ofcurved line such as hole or cut portion, in a shape of straight line ora circle as shown in FIG. 9. But what is the most effectively penetratedby the intermediate holding member 23 a, 23 b, is a shape of projectedshape of the intermediate holding member 23 a, 23 b with a little morewider space that is equal to the error in shape of the circuit board 29and the intermediate holding member 23 a, 23 b, and the error ofmounting to accept them.

[0166] Moreover in this embodiment, when the solid state image inputunit 22 is moved to adjust the position of second adhered surface, thethrough holes 60 a, 60 b are made and they are penetrated by theintermediate holding member 23 a, 23 b not to abut on circuit board 29,however, at this moment the solid state image input unit 22 may bepositioned on the circuit board 29 in order that the solid state imageinput unit 22 does not abut on the intermediate holding member 23 a, 23b.

[0167] For example, when the intermediate holding member 23 a, 23 b arefixed on the upper side of solid state image input unit 22, the solidstate image input unit 22 may be mounted on one upper end of the circuitboard 29 so that the circuit board 29 does not abut on the intermediateholding member 23 a, 23 b. In such configuration, the same effect asthis embodiment can be attained.

[0168] [Forth Embodiment]

[0169]FIG. 10s are views to show a fourth embodiment of mountingstructure for members and mounting apparatus for members according tothe present invention, and this mounting structure for members can beapplied to the image read out apparatus such as a copying machine, afacsimile machine, an image scanner and so on, and the image formingapparatus such as printing apparatus and so on.

[0170] This embodiment is characterized by that a distance between theimage forming lens unit and the solid state image input unit is adjustedwith moving the first adhered surface of the intermediate holding memberon the frame instead of performing the positioning adjustment of solidstate image input unit along Z axis through a through hole made on thecircuit board with penetration of the intermediate holding member andother configuration is quite the same as the first embodiment and thesame reference numerals are given to the same members and detailedexplanation will be omitted. But as for the intermediate holding member,four members of the intermediate holding member 23 a, 23 b, 23 c, 23 dare utilized each two on upper and lower surface of the solid stateimage input unit.

[0171] A frame 21 is composed of a image forming lens unit fixingsurface 70 onto which the image forming lens unit is fixed, a bracket 71to perform a conjugate adjustment and a sliding surface 72 on which theconjugate adjusting bracket 71 slides, and the conjugate adjustingbracket 71 constitutes a adjusting member according to the presentinvention as shown in FIG. 10.

[0172] The image forming lens unit fixing surface 70 corresponds to thehorizontal portion 21 a of the first embodiment, and the sliding surface72 is designed to locate lower than the image forming lens unit fixingsurface 70. When the positioning adjustment between the solid stateimage input unit 22 and the image forming lens unit 26 is performed, theconjugate adjusting bracket 71 is made to slide on the sliding surface72, then the conjugate adjusting bracket 71 is fixed after positions forthe solid state image input unit and the image forming lens unit 25 aredecided.

[0173] As a result of this, if a movable range of the conjugateadjusting bracket 71 is set larger than the fluctuation of conjugatelength for the image forming lens unit 25, the solid state image inputunit 22 can be accurately fixed even when a fluctuation of the conjugatelength happens.

[0174] As described above in this embodiment in addition to the effectof the first embodiment as well as the third embodiment, even when afluctuation of the conjugate length happens, the positioning adjustmentcan be accurately achieved because it can be set enough space to correctthe width of error along the Z axis.

[0175] [Fifth Embodiment]

[0176] FIGS. 11-13 are a view, a diagram and a flow chart to show afifth embodiment of mounting structure for members and mountingapparatus for members according to the present invention, and themounting apparatus is applied to a mounting apparatus for the solidstate image input unit.

[0177] At this time, this embodiment is an embodiment of the apparatusthat positioning adjustment for the solid state image input unit isachieved along a direction of the Z axis in the third embodiment,because the members that have mounting structure for members are quitethe same as the third embodiment, the same member is given the samereference numeral and the detailed explanation will be omitted.

[0178] Firstly, the configuration will be explained.

[0179] The solid state image input unit mounting apparatus 80 shown inFIG. 11 is composed with a light source 81, a chart 82 which isilluminated by the light source 81, a fixing table 84 to hold solidstate image input unit member 83 consisted of the frame 21, the solidstate image input unit 22 and the intermediate holding member 23 ofthird embodiment, a chart holding member 85 to hold the light source 81and the chart 82, a base 86 to fix the chart holding member 85 and thefixing table 84, and a controlling portion 87 to control (see FIG. 12).

[0180] The light source 81 is located above the chart holding member 85to illuminate the chart, and the chart 82 is located in order that acenter of the chart 82 coincides with an optical axis of the solid stateimage input unit 22 and the image forming lens unit 25.

[0181] The fixing table 84 has a first fixing portion to fit the frame21 with a chuck and so on, and a second firing portion 100 to fix thesolid state image input unit 22 with a chuck and so on. The secondfixing portion is made to move parallely along a direction of the Z axisthat is back and forth of the chart direction by the controlling portion87.

[0182] And, the fixing table 84 is capable of changing its height upwardand downward, since it is made to be able to adjust in order the centerof chart coincides with the optical axis of image forming lens unit 25fixed on the fixing table 84.

[0183] A distance between the fixing table 84 and the chart holdingmember 85 is made to be changeable according to a focal length of theimage forming lens unit 25 and the fixing table 84 moves parallely andreciprocally along a direction of the chart holding member.

[0184] The controlling portion 87 shown in FIG. 12 has a calculationunit 88 which is input an image data output from a circuit board(hereinafter referred to as CCD circuit board) where the solid stateimage input unit 22 is mounted, and calculates a position of the solidstate image input unit 22, a central processing unit (hereinafterreferred to as CPU) 89 to control the second fixing portion 100, adisplay unit 90 to display a length L of the second adhered surface ofintermediate holding member 23 a, 23 b of the third embodiment shown inFIG. 8, and a CCD circuit driving and control unit 92 to drive the solidstate image input unit 22 and the CCD circuit board 29. At this point inFIG. 12, the CCD circuit board is denoted as a CCD circuit.

[0185] To the calculation unit 88, the image data from the solid stateimage input unit 22 on which an image of chart 82 is focused through theimage forming lens unit 25, is input and the position of solid stateimage input unit 22 is calculated based on the image data.

[0186] The CPU 89 makes he second fixing portion 100 move along adirection of the Z axis, that is along the optical axis on the basis ofcalculated result calculated in the calculating unit 88. And, the CPU 88is made to control the light source driving unit 91 and the CCD circuitdriving and control unit 92.

[0187] The display unit 90 calculates and displays the L shown in FIG. 8after the second fixing portion is adjusted.

[0188] An operation of this mounting apparatus 80 will be explained withreference to FIG. 13.

[0189] Firstly, the solid state image input unit member 83 is fixed onthe first fixing portion and the second fixing portion 100 of fixingtable 84 and a height of the fixing table 84 is coincided with a centerof the chart 82 and the optical axis 28, and at the same time, adistance from the chart 82 is adjusted based on the focal length ofimage forming lens unit, an electric power supply is turned on and thesolid state image input unit 22 is activated (Step 1).

[0190] Then, the image of chart 82 is focused on the solid state imageinput unit 22, the image data are output and the image data are input tothe calculating unit 88 (Step 2).

[0191] The calculating unit 88 calculates the position of solid stateimage input unit 22 on the basis of these image data (Step 3).

[0192] Next, the CPU 89 judges if there is a fluctuation of theconjugate length based on the result of calculation (Step 4). In casewhen there is no fluctuation of the conjugate length, the CPU calculatesa length of the second adhered surface B of intermediate holding member23, and displays the length L (Step 5), and terminates the operation.When in a case there is a fluctuation in the conjugate length, it makesthe second fixing portion 100 move parallely and performs thepositioning adjustment (Step 6) and the solid state image input unit 22is focused the image of chart 82 again.

[0193] As described above in this embodiment because the image of chart82 illuminated by the light source 81 is focused on the solid stateimage input unit 22 through the image forming lens unit 25, and theposition of second fixing portion 100 can be calculated, even when thefluctuation of a relative positional discrepancy happens between theframe 21 and the solid state image input unit 22 caused by a fluctuationof the conjugate length occurred in the image forming lens unit 25, theposition along a direction of the Z axis can be adjusted by the secondfixing portion 100, and the solid state image input unit 22 can be fixedonto the intermediate holding member 23 with a fixing accuracy of thesolid state image input unit 22 kept in a higher level.

[0194] At this time in this embodiment, the solid state image input unit22 is get the positioning adjustment and fixed after it is held onto thesecond adhered surface by a chuck and so on, it may be utilized thatseveral kinds of intermediate holding member 23 are prepared and everytime the positioning adjustment is performed a inter mediate holdingmember 23 which corresponds to the length L is selected and fixed.

[0195] Also, a solid state image input unit member with a structure ofthe fourth embodiment may be utilized for the solid state image inputunit member utilized in this embodiment. In this case, the second fixingportion 100 is made to hold the conjugate adjusting bracket.

[0196] [Sixth Embodiment]

[0197] FIGS. 14-16 are views to show a sixth embodiment of the mountingstructure for members and mounting apparatus for members according tothe present invention, and the mounting apparatus is applied to amounting apparatus for the solid state image input unit.

[0198] The sixth embodiment is intended further to provide a mountingstructure for solid state image input unit in which a restriction onlayout does not occur because all parts for it can be contained within aspace of the minimum requirement.

[0199] In FIGS. 14 and 15 a image forming lens unit 25 to form an imageof document on the respective pixel lines 6 a, 6 b, 6 c (see FIG. 48) ofR, G and B is pushed by a lens holding plate 26 and held on a frame 221as the first member. At this time, the optical axis 28 of this imageforming lens unit 25 corresponds to a direction of the Z axis in thecoordinate system. In addition, the direction of X axis corresponds to adirection of the main scanning line of image input unit, that is a linedirection along the pixel lines and a direction of the Y axiscorresponds to a direction along the secondary scanning line.

[0200] Further, the CCD circuit board 29 is implemented the solid stateimage input unit 22. At this point, CCD circuit board 29 has function todrive the solid state image input unit 22, and to output the electricsignal corresponding to the focused optical image on the solid stateimage input unit 22 to the image input unit after the required electricprocesses have been performed.

[0201] And, the solid state image input unit 22 is mounted onto avertical portion 221 b of the flame 221 through a intermediate holdingmember 223 which has a shape of letter L.

[0202] The intermediate holding member 223 and the solid state inputunit 22 are adhered together and fixed at the second adhered surfacedisposed on a side surface of the solid state image input unit 22 inFIG. 16. And, the intermediate holding member 223 and the frame 221 areadhered together and fixed at the first adhered surface A of verticalportion 221 b.

[0203] At this time, the first adhered surface A as the adhered surfaceof frame side, is located at a position intersecting with the opticalaxis 28 looking from the direction of X axis as shown in FIG. 16.Because of this the height of a horizontal portion 223 e of theintermediate holding member 223 and the vertical portion 221 b of frame221 are almost equal to the height of lens holding plate 26 as shown inFIG. 15.

[0204] With regard to the height direction (Y direction), at least anamount of the height of image forming lens unit 25 must be secured evenin the minimum case. As a result, a layout of the whole structure can bemaintained keeping things as they are while the area (that means anadhesive forth) for adhesion is increased by means that a verticalportion 223 f of the intermediate holding member 223 is expanded to asize equal to that of the lens like FIG. 15. In other words, arestriction in layout does not occur because all parts can be containedin a minimum requirement space.

[0205] As for an adhering means for the solid state image input unit 22and the intermediate holding member 223, and an adhering means for theimage forming lens unit 25 and the intermediate holding member 223, toutilize specially an ultraviolet curing adhesive material which has ahardening time of level of ten seconds, has a merit from a view point ofproductivity. In this case, the transparent members such as glass,plastic and so on are employed as the intermediate holding member 223,and the ultraviolet (not shown) is made to pass through the intermediateholding member 223 and to irradiate the first adhered surface A and thesecond adhered surface B, and then the hardening is made possible.

[0206] During a hardening of the adhesive material in the manufacturingprocess the frame 221 and the solid state image input unit 22 are in astate that they are held by a manufacturing apparatus (not shown) on theother hand the intermediate holding member 223 is in a state that it isnot held by anything.

[0207] By this arrangement, the ultraviolet begins to shrink from aninitial state. By this shrinkage of the adhesive material, the adhesivematerial is hardened while the intermediate holding member 223 movessuch as it is pulled by the frame 221 and the solid state image inputunit 22.

[0208] The adhering thickness of the first adhered surface A and thesecond adhered surface B in this adhering fixation is the tinner thebetter to reduce an effect of shrinkage. However, there comes anecessity having to set a thickness to cover a difference betweenconcavity and convexity of the surface in accordance with the flatnessof the solid state image input unit 22, the frame 221 and theintermediate holding member 223 in actual.

[0209] By the way, in a manufacturing process the solid state imageinput unit 22 must be adjusted in a predetermined position before theadhering fixation. In other words, it is required that to read out theoptical characteristics (focus, magnification) within a predeterminedrequired accuracy at the adjusted position and to adjust the position ofthe solid state image input unit 22 with a micro moving along the fiveaxes of X, Y, Z, β and γ.

[0210] To attain the above firstly as for the X direction, the solidstate image input unit 22 is slid along a direction of the X axis on thesecond adhered surface B to be adjusted.

[0211] As for the Y direction, it is adjusted by means that theintermediate holding member 223 and the solid state image input unit 22are slid working together on the first adhered surface A.

[0212] As for the Z direction, it is adjusted by means that the solidstate image input unit 22 is slid along a direction of Z axis on thesecond adhered surface B.

[0213] As for β direction in the rotational adjustment, the solid stateimage input unit 22 makes a rotational moving working together in βdirection an the second adhered surface B to be adjusted.

[0214] As for γ direction in the rotational adjustment, the intermediateholding member 223 and the solid state image input unit 22 make arotation working together in γ direction on the first adhered surface Ato be adjusted.

[0215] The each movement along the X, Y, Z, β and γ axes can beperformed fully independently from each other. It is caused by that thefirst adhered surface A and the second adhered surface B are arranged inright angle each other. The sliding movement for adjustment can becoincided with the rectangular coordinate because the first adheredsurface A and the second adhered surface B are made in a right angletogether.

[0216] As described above according to the sixth embodiment because thefirst adhered surface A is located to make a right angle with theoptical axis 28 and at the some time, the height of optical axis is setwithin the range of a height of the first adhered surface A along thevertical direction, and a shrinkage at the intermediate holding member223 is transformed to a movement to come nearer (a slide) to the solidstate image input unit 22 and the frame 221 with regard to an effect ofhardening shrinkage which occurs at a hardening of the adhesivematerial, the positional discrepancy at the solid state image input unititself can be suppressed and the solid state image input unit 22 can belocated with high accuracy in relation to the frame 221.

[0217] Moreover, the whole structure can get a micro movement to adjustits position along the respective five directions of X, Y, Z, β and γaxes by means that sliding adjustments are performed in the two surfacesbeing right angle each other (the first adhered surface A and the secondadhered surface B).

[0218] Further again, the whole parts of structure can be contained inthe minimum required space and occurrence of a restriction for thelayout can be prevented because the first adhered surface A and thesecond adhered surface B can be included within the vertical (Ydirection) range of the image forming lens unit 25 which is thefundamental restricted area on the layout by means that the firstadhered surface A and the optical are located in the same height whenviewing along the X direction.

[0219] [Seventh Embodiment]

[0220] FIGS. 17-18 are views to show a seventh embodiment of themounting structure for members and mounting apparatus for membersaccording to the present invention, and the mounting apparatus isapplied to a mounting apparatus for the solid stat image input unit.

[0221] In this seventh embodiment, a number of the intermediate holdingmember 23 to fix the solid state image input unit 22 is made to be morethan at least two and the adhered surface 23 e located in the side ofsolid state image input unit 22 of at least one of the intermediateholding member 23, is arranged to oppose to the adhered surface 23 f ofother intermediate holding member 23 located in the side of solid stateimage input unit 22 as shown in FIG. 17. At this point, a referencenumeral 23 g denotes a rib.

[0222] At this time, it is possibly that the adhered surface 23 e andthe adhered surface 23 f are located to be parallel each other as shownin FIG. 18(a), and the adhered surface 23 e and the adhered surface 23 fare located to oppose each other as shown in FIG. 18(b).

[0223] A characteristic frequency of mechanical vibration and a shape ofmechanical vibration of a mounting structure of the solid state imageinput unit 22 in which the intermediate holding member 23 are located asthis seventh embodiment and a mounting structure of the solid stateimage input unit 22 of the first embodiment as shown in FIGS. 1-3 arecalculated with the numerical analysis till mode three and comparedtogether. In accordance with this comparison the characteristicfrequency of mechanical vibration for the structure of the seventhembodiment is higher about a level of 30-50% than that of the firstembodiment, it shows that the structure of seventh embodiment is muchstronger for vibration.

[0224] As described above according to the seventh embodiment, astructure of this kind can become much stronger for the external forceand the vibration than a structure in which the same number ofintermediate holding member are located in the same side because anumber of the intermediate holding member 23 to fix the solid stateimage input unit 22 is made to be more than at least two and the adheredsurface 23 e located in the side of solid state image input unit 22 ofat least one of the intermediate holding member 23, is arranged tooppose to the adhered surface 23 f of other intermediate holding member23 located in the side of solid state image input unit 22.

[0225] At this point, it may be possible that as for a shape of theintermediate holding member, a shape of triangle pole having right angleor the intermediate holding member in which rib are arranged on it asshown for one example in the seventh embodiment, is utilized.

[0226] [Eighth Embodiment]

[0227]FIG. 19 is a view to show the intermediate holding member utilizedin a eighth embodiment of the mounting structure for members andmounting apparatus for members according to the present invention, thewhole structure other than the intermediate holding member is quite thesame with the seventh embodiment shown in FIG. 17 and the mountingapparatus is applied to a mounting apparatus for the solid state imageinput unit.

[0228] In this eighth embodiment ribs 23 h are arranged in the both endsof both adhered surfaces of the intermediate holding member 23 in orderthat the ribs make a right angle with both of the adhered surface insolid state image input unit side and the adhered surface inintermediate holding member side as shown in FIG. 19. And they arelocated to fix the frame 21 and the solid state image input unit asshown in FIG. 17, then ultraviolet is irradiated to harden theultraviolet curing adhesive material from a direction shown by an arrowU in FIG. 19. At this time, an amount of the ultraviolet per unit areapassing through the flat portion 23 e, 23 f of the intermediate holdingmember 23 is the same amount as for an L shaped intermediate holdingmember without rib 23 h (for example see FIG. 2 or FIG. 3). Because ofthis especial unevenness in hardening of the ultraviolet curing adhesivematerial does not occur and furthermore the intermediate holding memberis get stronger in comparison with the intermediate holding member whichhas not the ribs 23 h for the external force and the mechanicalvibration from a view point of strength.

[0229] As described above according to the eighth embodiment, a mountingstructure which is strong against the external force and the mechanicalvibration can be realized because the same level of strength as aintermediate holding member having a shape of triangle pole can begiven, and the adhered surface can be made flat, further the amount ofultraviolet passing through the intermediate holding member can bedistributed uniformly and homogeneous adhering quality can be realizedby means that ribs 23 h having a shape of vertical rib are arranged inboth end of the adhered surfaces (the first adhered surface A and thesecond adhered surface B) of the intermediate holding member.

[0230] [Ninth Embodiment]

[0231] FIGS. 20-25 are views to show a ninth embodiment of the mountingstructure for members and mounting apparatus for members according tothe present invention, and the mounting apparatus is applied to amounting apparatus for the solid state image input unit.

[0232]FIG. 20 shows one example of the ninth embodiment and FIG. 21shows another example of the ninth embodiment.

[0233] As shown in FIG. 20 and FIG. 21, the frame 21 is mounted on ahousing 270 by means of fixing means 271 such as screws after all theadjustment has been completed and the adhesive material has beenhardened. The fixing means 271 usually has more tin two of fixingportions 272 to fix stably the frame 21. At this time, the frame 21 isclamped at a plane 278 in which the frame 21 and the fixing means 271contact by the fixing means 271.

[0234] A line 279 can be formed between arbitrary two points within therespective two planes 278 which clamp the arbitrary two fixing portions272 on the frame 21 as shown in FIG. 24 which is an enlarged view of therelevant part in FIG. 20.

[0235] The first adhered surface A which adheres the intermediateholding member 23 and the frame 21 is located on a plane 276 which isgiven when the line 279 is extended parallely in a direction 275 alongthe housing is fixed (direction 275).

[0236] A plane 282 can be formed when the limes 281 tie betweenarbitrary two points on the plane 278 which clamps more than threefixing portion 272 as shown in FIG. 25 which is an enlarged view of therelevant part in FIG. 21.

[0237] The first adhered surface A which adheres the intermediateholding member 23 and the frame 21 is located in a space 277 which isgiven when the plane 282 is extended parallely in a direction 275 alongthe housing as shown in FIG. 21.

[0238] At this time when in a case the first adhered surface A whichadheres the intermediate holding member 23 and the frame 21 is locatedoutside with regard to the space 277, this structure can be supposed asa simple model with a shape of beam (hereinafter referred to as beammodel) in that the fixing portion 272 is looked on as a fixing portionof the beam model 272′, and the system composed with the frame 21—theintermediate holding member 23—the solid state image input unit 22 islooked on as a beam 279, then the system can be represented as acantilever model as shown in FIG. 22.

[0239] When the structure of one example of the ninth embodiment ofmounting structure for solid state image input unit shown in FIG. 20 andthe structure of another example shown in FIG. 21 are similarly lookedon as the beam shape model, they are represented as a beam model withboth ends are fixed as shown in FIG. 23.

[0240] At this point when a strength and an own weight of the beamportions of the above both models are the same, the both end fixed modelis stronger and has a higher characteristic frequency than thecantilever model.

[0241] As described above, as shown in FIG. 25, the system composed withthe frame 21—the intermediate holding member 23—the solid state imageinput unit 22 according to the ninth embodiment, can be looked on as abeam with both ends fixed when it is thought as a vibration model, andit is more understandable that the system has much higher strength atthe fixing portion of the solid state image input unit and the improvedcharacteristic for vibration comparing to other types of structure whenthe first adhered surface A which adheres the frame 21 and theintermediate holding member 23, is formed at an intersecting point withthe plane 276 which is given the line 279 extending parallels along thedirection 275 which is the fixing direction of the housing 270, wherethe line 279 is given by selecting arbitrary two points within therespective two planes 278 which clamp the arbitrary two fixing portions272 on the frame 21, or when the fist adhered surface A which adheresthe frame 21 and the intermediate holding member 23, is formed with thespace 277 which is given the plane 282 extending parallely along thedirection 275 which is the fixing direction of the housing 270, wherethe plane 282 is given when the lines 281 tie between arbitrary twopoints on the plane 278 that clamps the frame 21 onto the housing 270 atmore than three fixing portion 272.

[0242] [Ninth Embodiment]

[0243] FIGS. 26-28 views to show a tenth embodiment of the mountingstructure for members and mounting apparatus for members according tothe present invention, and the mounting apparatus is applied to theimage read out apparatus such as a copying machine, a facsimile machine,an image scanner and so on.

[0244] Firstly, the configuration will be explained. The referencenumeral 21 denotes a frame (image forming lens unit holding member) inFIGS. 26-28; and the frame 21 is formed in a plane shape.

[0245] A V shaped ditch 24 is formed in the frame 21 and a image forminglens unit 25 is located with positioning adjustment in the V shapedditch 24. The image forming lens unit 25 is made to form an image ofdocument on respective pixel lines 22 a, 22 b, 22 c composed byrespective solid state image input unit 22 which is combinedphotoelectric converting devices such as CCD aligned in every RGBrespectively separated, and the lens unit is fed on the frame 21 by alens fixture 26. At this time, there are several screw holes 27 in theframe 21 and the lens 26 is fixed on the frame 21 by means that bolts(not shown) are inserted to through holes 26 a which are formed in thelens fixture 26 and they are fixed on the screw holes 27.

[0246] In the solid state image input unit 22, the pixel lines 22 a, 22b, 22 c including the photoelectric converting devices, are aligned inlines at a source of main body 32 made of ceramics, and a cover glass (aportion denoted with slant lines in FIG. 27(c)) 33 is attached onto thesurface of main body 32 to cover the pixel lens 22 a, 22 b, 22 c. A pairof the intermediate holding member 23 are attached at the both endsportions other than the cover glass, and the main body 32 is supportedby the intermediate holding member 23 at the horizontal portion 21 awhich is a projecting portion of the frame 21 so that the pixel lines 22a, 22 b, 22 c oppose to the image forming lens unit 25.

[0247] At this point, the reference numeral 28 denotes an optical axisin the FIG. 27, and it corresponds to a direction of Z axis. Also, Xaxis direction extends along a main scanning direction of the image readout apparatus, and Y axis direction extends along a secondary scanningdirection.

[0248] At the back side of the main body 32, terminal 34 is disposed andan CCD circuit board 29 is attached to the terminal 34, the CCD circuitboard 29 is mad to drive the solid state image input unit 22 and at thesame time, to output the electric signal of solid state image input unit22 on the basis of focused optical image to the image read out apparatusafter an electric process is given.

[0249] In the mean time, the intermediate holding member 23 is formed tobe an L shaped of a material through which ultraviolet can pass. Theintermediate holding member 23 is fixed on the surface of ceramic otherthan the horizontal portion 21 a and the cover glass 33 respectively byan ultraviolet curing adhesive material 30, 31. The intermediate holdingmember 23 is arranged between the horizontal portion 21 a and theceramic surface of the main body 32 so that an adhered surface A betweenthe horizontal portion 21 a and the intermediate holding portion 28(hereafter referred to as a first adhered surface) becomes a surfaceparallel to the pixel line 22 a, 22 b, 22 c and the optical axis 28 andat the same time, an adhered surface B between the solid state imageinput unit 22 and the intermediate holding member 23 (hereafter referredto as a second adhered surface) crosses at right angle with the opticalaxis 28.

[0250] Hereinafter positioning adjustment method for the solid stateimage input unit 22 will be described.

[0251] Adhesive material 30, 31 is painted by a solid state image inputunit mounting apparatus (not shown) on the two surfaces A aid B of theintermediate holding member which cross at right angle each other. Atthis moment, after thickness of the adhesive material 30, 31 ismonitored and adjusted by a camera (not shown) so that the thickness ofthe adhesive material become constant, the intermediate holding member23 is attached onto the horizontal portion 21 a and at the same time,the ceramic surface of main body 32 is attached to the intermediateholding member 23 by the mounting apparatus.

[0252] Then, a line image focused by the image forming lens unit 25 islocated on the solid state image input unit 22, and at the same time,operations to read out the optical characteristics (focus, magnificationand so on) with a predetermined accuracy is performed. At this momentthe positioning adjustment of solid state image input unit 22 isachieved while the data of optical characteristics which are transformedthrough photoelectric conversion by the solid state image input unit 22are monitored.

[0253] At first, when in a case to achieve positioning adjustment alongX axis direction after the frame 21 is fixed on a base of the mountingapparatus, the intermediate holding member 23 is held grippingly by achuck and so on so that the intermediate holding member 23 is made toslide on the adhesive material 30, and positioning adjustment isachieved.

[0254] Further, when in a case to achieve positioning adjustment on βaxis around Y axis, the intermediate holding member 23 is heldgrippingly by a chuck and so on so that the intermediate holding member23 is made to slide on the adhesive material 30.

[0255] Also, when in a case to achieve positioning adjustment along Yaxis direction, the CCD circuit board 29 and the intermediate holdingmember 23 is held grippingly by a chuck and so on so that both of thesolid state image input unit 22 and the intermediate holding member 23are made to slide at the same time, on the adhesive material 31.

[0256] In addition, when in a case to achieve positioning adjustmentalong Z axis direction, the intermediate holding member 23 is heldgrippingly by a chuck and so on so that the solid state image input unit22 is made to side at the same time, on the adhesive material 30.

[0257] Moreover, when in a case to achieve positioning adjustment on γaxis around Z axis, the CCD circuit board 29 and the intermediateholding member 23 are held grippingly by a chuck and so on so that thesolid state image input unit 22 and the intermediate holding member 23are made to slide on the adhesive material 31.

[0258] In this embodiment, the respective motions of X, Y, Z, β and γcan be independently performed d for every axis, and the sliding motionsto adjust the intermediate holding member 23 and the solid state imageinput unit 22 can be agreed with the Cartesian coordinate directionbecause the intermediate holding member 23 is arranged between the frame21 and the slid state image input unit 22 so that the first adheredsurface A and the second adhered surface B crosses at right angle.

[0259] At this time, the reason why an adjustment of rotational axisaround X axis is not performed is that the distances between the imageforming lens unit 25 and respective pixels of the solid state imageinput unit 22 become not different without adjustment around X axis evenwhen the adjustment around the X axis is not performed, because the Xaxis is located along (in parallel to) a direction of the line of pixels22 a-22 c in comparison with that the adjustments around the β and γaxis cause deteriorate the accuracy of optical characteristics becausethe distances between the image forming lens unit 25 and respectivepixels of the solid state image input unit 22 becomes different when theadjustment of the β axis and γ axis around the Y axis and Z axis are notperformed.

[0260] As described above, the positioning adjustment of solid stateimage input unit 22 is performed and when a judgement that the opticalcharacteristics get satisfied a level within the predetermined accuracy,has been made through output from the monitor, the adhesive materials30, 31 are hardened all at one with an irradiation of the ultravioletthrough the intermediate holding member 23 from vertical directions tothe surfaces to be adhered at all area to be adhered of the adhesivematerials 30, 31, by an ultraviolet irradiating light (not shown).

[0261] As described above, in this embodiment because the intermediatedholding member 23 is arranged so that the first adhered surface Abetween the frame 21 and the intermediate holding member 23 isparallelized with the pixel line 22 a-22 c of solid state image inputunit 22 and the optical axis 28 and at the same time, the surface ofsolid state image input unit 22 and the second adhered surface B crosswith right angle the positioning adjustment only in the direction alongthe five direction of X, Y, Z, β and γ axes can be easily achieved andthe positioning adjustment in a direction around X axis is actively notperformed.

[0262] In addition, the mounting of solid state image input unit 22 isperformed with high precision and yield of the process can get higher bymeans that thickness of the adhesive materials 30, 31 which are appliedto the first adhered surface A and the second adhered surface B arecontrolled in the minimum requirement and constant value, and apositional accuracy of the adhered portions of solid state image inputunit 22 and frame 21 do not have to be strictly controlled because theintermediate holding member 23 is equipped between the solid state imageinput unit 22 and the frame 21, and at the same time, it can beprevented that an occurrence of deterioration in a fixing forth of thesolid state image input unit 22 after the solid state image input unithas been completed (after the adhesive material is hardened).

[0263] A time required to harden the adhesive materials 30, 31 can beshortened and a productivity can be increased because the adhesivematerial 80, 81 are selected from ultraviolet adhesive materials and theintermediate holding member 23 is made of a material which can passultraviolet through so that the ultraviolet can be irradiate onto theultraviolet curing adhesive material through the intermediate holdingmember 23, and the ultraviolet can be irradiated all at once onto all ofthe adhered surfaces through the intermediate holding member 23 fromvertical directions.

[0264] At this point, the thickness of adhesive material 30, 31 are thethinner the better in order to decrease an influence of the shrinkagewhen hardened. However, it actually happens a necessity that thethickness are arranged to cover a difference between concavity andconvexity of the surface in accordance with the flatness of the solidstate image input unit 22.

[0265] Though the intermediate holding member 23 is mounted at the bothends portions of the main body 32 other than cover glass 33, theintermediate holding member 23 may be mounted at the back side of mainbody 32 without limiting only to the front side. In such a case, aholding surface of the intermediate holding member 23 which is shown inFIG. 26(a) is put between the CCD circuit board 29 and the main body 32.

[0266] In addition, the intermediate holding member 23 may be mounted atthe both ends portions of cover glass 33 as shown in FIG. 28(a) and theintermediate holding member 23 may be mounted on the surface of the CCDcircuit board 29 as shown in FIG. 28(b). In such case, it is needless tosay that the same effect can be attained as the streetcars describedabove.

[0267] [Eleventh Embodiment]

[0268] FIGS. 29-30 are views to show an eleventh embodiment of mountingstructure for members and mounting apparatus or members according to thepresent invention, and the mounting apparatus is applied to a mountingapparatus for the solid state image input unit.

[0269]FIG. 29 is a unexploded perspective view to show one example ofmounting structure for solid state image input unit according toeleventh embodiment of the present invention, and FIG. 30 is an explodedperspective view to show another example of mounting structure for solidstate image input unit according to eleventh embodiment of the presentinvention. This mounting structure is applied to the image read outapparatus such as a copying machine, a facsimile machine, an imagescanner and so on.

[0270] At first, a configuration of parts of the mounting apparatus towhich the mounting structure is applied.

[0271] The mounting apparatus of solid state image input unit 22includes an image forming lens unit 25, an intermediate holding member28 having a structure in which a first adhered surface A and a secondadhered surface B are arranged with right angle each other and bothparallel to the pixel line, a CCD circuit board 29 on which the solidstate image input unit 22 is held, a frame 21 to hold the image forminglens unit having a ditch 24 in which the image forming lens unit 25 ismounted on, and screw holes by which a lens holding fixture 26 is fixed,and two adhering surfaces for the pixel lines including thephotoelectric converting devices of solid state image input unit 22 anda horizontal plane 21 a which is parallel to the optical axis, at theopposite side of image forming lens unit 25 located, a lens holdingfixture 26 and a spacer 307 to be fixed with a detachable means onto theCCD circuit board 29. The shape of spacer 307 is a one body shape whichis connected in a plurality of portions as shown in FIGS. 29 and 30.

[0272] The aforesaid frame 21 and the spacer 307 are made of materialswhose coefficient of line expansion is the same each other, and therigidity of a material for the CCD circuit board 29 is weaker than thatfor the spacer 307.

[0273] According to the embodiment shown in FIGS. 29 ad 30 even when anenvironmental temperature change happens, an amount of elongation bythermal expansion are the same because the coefficient of materials forthose are the same and no stress is induced between the two adheredsurfaces on the intermediate holding member 23, since, no peeling offoccurs. There happens a difference of amount of elongation between theCCD circuit board 29 and the spacer 307 because the coefficient of lineexpansion for these are not equal, however reliability of adhesivestrength between the frame 21 and the spacer 307 can be maintainedbecause the rigidity of the CCD circuit board 29 is weaker than that ofthe spacer 307 and CCD circuit board 29 follows the mount of elongationof the spacer 307 and the position of solid state image input unit 22 isnot changed.

[0274]FIG. 31 is a perspective view to show another example according tothe eleventh embodiment.

[0275] In the example of FIG. 31, the same reference numeral is given tothe same portion as the example of FIG. 30 and detailed explanation willbe omitted.

[0276] The spacer 307 is composed of plurality of portions which areadhered together as shown in FIG. 31. And, aforesaid frame 21 and thespacer 307 are made of materials whose coefficient of the line expansionis the same.

[0277] According to the configuration of this embodiment, even when anenvironmental temperature change happens, an amount of elongation bythermal expansion are the same because the coefficient of materials forthose are the same and no stress is induced between the two adheredsurfaces on the intermediate holding member 23, since, reliability ofadhesive strength between the frame 21 and the CCD circuit board 29 canbe maintained.

[0278] The spacer 307 is composed of plurality of portion which areadhered together as shown in FIG. 31, and the frame 21 and the CCDcircuit board 29 are made of materials whose coefficient of the lineexpansion is different, moreover the rigidity of CCD circuit board canbe weaker than that of the frame.

[0279] According to the configuration of this embodiment, when anenvironmental temperature change happens, an amount of elongation bythermal expansion becomes different because the coefficient of materialsfor those are different. However, because the rigidity of the CCDcircuit board 29 is weaker than that of the frame 21, and CCD circuitboard 29 follows the amount of elongation of the frame 21 and theposition of solid state image input unit 22 is not changed. And thereliability of adhesive strength between the frame 21 and the CCDcircuit bond 29 can be maintained.

[0280] FIGS. 32-34 are cross sectional views to show examples ofmounting structure of CCD circuit board 29 and spacer 307 of theeleventh embodiment.

[0281] In this mounting sa e the CCD circuit board 29 and the spacer807. are mounted with screws 308 as shown in FIG. 32.

[0282] According to this mounting structure even when defective productis made in the mounting process for solid state image input unit by anypossibility, the CCD circuit board 29 including the solid state imageinput unit 22 can be removed from the spacer 307 and it can bereutilized by means that the fixing screws 308 by which the spacer 307is mounted on the CCD circuit board 29, are loosened.

[0283] As shown in FIG. 33 in the mounting structure, CCD circuit board29 and the spacer 307 can be fixed by means of a push pin 309.

[0284] According to this mounting structure, even when defective productis made in the mounting process for solid state image input unit by anypossibility, the CCD circuit board 29 including the solid state imageinput unit 22 can be removed from the spacer 307 and it can bereutilized by means that the push pins 309 by which the spacer 307 ismounted on the CCD circuit board 29, are removed.

[0285] As shown in FIG. 34 in the mounting structure COD circuit board29 and the spacer 307 can be fixed by means of a thermal fusion bondportion 310.

[0286] According to this mounting structure, even when defective productis made in the mounting process for solid state image input unit by anypossibility, the CCD circuit board 29 including the solid state imageinput unit 22 can be removed from the spacer 307 and it can bereutilized by means that the thermal fusion bond portion 310 by whichthe spacer 307 is mounted on the CCD circuit board 29, are cut.

[0287] [Twelfth Embodiment]

[0288] FIGS. 35-37 are views to show a twelfth embodiment of mountingstructure for members and mounting apparatus for members according tothe present invention, and the mounting apparatus is applied to amounting apparatus for the solid state image input unit.

[0289] The twelfth embodiment is different from the above describedembodiment of FIG. 29, 30 at portion of the spacer and otherconfiguration is quite the same.

[0290] The spacer 307 is arranged so as to circumscribe the solid stateimage input unit 22 with its through hole and fixed onto the solid stateimage input unit 22 by a fixing screw 308 which is detachable. Thespacer 307 and the intermediate holding member 23 are adhered togetheras well as the structure shown in FIG. 29 and FIG. 30. In thisembodiment the frame 21, spacer 307 and the intermediate holding member23 are made of material whose coefficient of line expansion is the same.

[0291]FIG. 37 shows an intermediate holding member which is the samekind of the intermediate holding member utilized in the structure ofFIG. 29 and FIG. 30.

[0292] According to this mounting structure, even when defective productis made in the mounting process for CCD circuit board 29 including thesolid state image input unit 22 by any possibility, the CCD circuitboard 29 including the solid state image input unit 22 can be removedfrom the spacer 307 and it can be reutilized by means that the fixingscrews 308 by which the spacer 307 is mounted on the CCD circuit board29, are loosened.

[0293] Further, this structure also has a merit that even when anenvironmental temperature change happens, no stress is induced betweenthe adhered surfaces and no peeling off occurs, once, reliability ofadhesive strength can be maintained.

[0294] According to this mounting structure, even when the requiredcharacteristics are not satisfied after positioning adjustment for theintermediate holding member 23 and the frame 21, and for theintermediate holding member 23 and the spacer 307 are performed ad theyare fixed by hardening at the mounting process for the solid state imageinput unit, the CCD circuit board 29 including the solid state imageinput unit 22 can be removed from the spacer 307 and it can bereutilized by means that the fixing screws 308 by which the spacer 307is mounted on the CCD circuit board 29, are loosened as shown in FIG.36.

[0295] [Thirteenth Embodiment]

[0296] FIGS. 38-41 are views to show a thirteenth embodiment of mountingstructure for members and mounting apparatus for members according tothe present invention, and the mounting apparatus is applied to amounting apparatus for the solid state image input unit.

[0297]FIGS. 38 and 39 are views to show the thirteenth embodiment, FIG.38 is an exploded perspective view and FIG. 39 is a perspective view.Also, FIG. 40 is an enlarged perspective view of circumference of thesolid state image input unit and FIG. 41 is a front view of the solidstate image input unit.

[0298] The thirteenth embodiment is different from the above describedembodiment of FIG. 29, 30 at portion of an adhesion of the intermediateholding member and other configuration is quite the same.

[0299] This embodiment is characterized by that the adhered portion ofthe CCD circuit board 29 are located on a line extending from the pixellines and at a point which is apart a length of adjustment space 320 ofthe solid state image input unit 22 from the end portion of solid stateimage input unit as shown in FIGS. 38-40.

[0300] The intermediate holding member 23 which is utilized to adherethe CCD circuit board 29, is located on a line extending from the pixelline and at a point where the length of adjustment space 320 of thesolid state image input unit 22 can be secured as shown in FIG. 40, andFIG. 41.

[0301] Moreover, the adhering surface of the CCD circuit board 29 ismade as a solder coated surface 321 and the solder coated surface 321 islocated at a position where the intermediate holding member 23 isdisposed, and the area around it is made to secure the length ofadjustment space for solid state image input unit 22 in both the mainscanning direction and the second scanning direction. In the drawing thereference numeral 22 d denotes an adhering position.

[0302] When the solid state image input unit 22 is adjusted, there is anecessity to hold it. FIG. 42 is a structural diagram to hold the solidstate image input unit.

[0303] When the portion of the image forming lens unit 25 and the solidstate image input unit 22 which are fixed on the frame 21 we adjusted soas to secure the required optical characteristics, the adjustment isachieved with holding the solid state image input unit 22 and moving aposition of the solid state image input unit 22. At the time, chuckportions 401, 402 which are not shown in the drawing and equipped in theCCD position adjusting machine, hold the solid state image input unit22.

[0304] According to this embodiment, even when the CCD circuit board 29deforms due to thermal shock or mechanical vibration, the effect ofdeformation does not occur at the position of pixel in the solid stateimage input unit 22 and the required optical characteristics are securedbecause the adhering position of the CCD circuit board 29 is locatedalong a line extending from the pixel line of the solid state imageinput unit 22 at a vicinity of the end portion of solid state imageinput unit.

[0305] On the contrary in a structure shown in FIG. 44 when the CCDcircuit board 29 deforms due to thermal shock or mechanical vibration,the effect of deformation does occur at the position of pixel in thesolid state image input unit 22 and the required optical characteristicsare not secured because the adhering position of the CCD circuit board29 is located far from an end of the solid state image input unit asshown in FIG. 44.

[0306]FIG. 45 is a front view to show another example of the solid stateimage input unit mounted on the substrate. In the drawing the referencenumeral 22 f denotes portions in which a mounting height is less than 1(one) mm.

[0307] [Fourteenth Embodiment]

[0308] In the mounting for integrated circuit it is well known what madeof ceramics and utilized mainly far industrial products as dual in linepackage (hereinafter referred to as DIP) and what made of plastic andutilized for consumer products.

[0309] The DIP made of ceramics is further classified into the ceramicsDIP of burnt type and CerDIP of glass sealed. The CerDIP of glass sealedhas a merit of production cost because it needs less man power in theproduction line in comparison with the ceramics DIP, since solid stateimage input unit of CerDIP type is required to make better use.

[0310] At first, a fundamental configuration of the solid state imageinput unit of CerDIP type will be explained.

[0311]FIG. 51 is a cross sectional view to show a fundamentalconfiguration of the CerDIP type solid state image input unit.

[0312] A fundamental configuration of CerDIP type solid state imageinput unit 62 includes a base 63 made of ceramics, a semiconductor chip64 mounted on the base 63, pixel lines 64 a, 64 b, 64 v formed on thesemiconductor chip 64, lead frame 67 bonded to the base 63 by sealingglass 66, lead wire 65 connecting between the lead frame 67 and thesemiconductor chip 64 with wire bonding, wind frame 68 bonded on thebase 63 via the sealing glass 66, and cover glass 69 adhered on the windframe 68 to seal the semiconductor chip 64 as shown in FIG. 51.

[0313] Next, the fourteenth embodiment of the mounting structure formembers and mounting apparatus for members according to the presentinvention with one sample of mounting structure for the CerDIP typesolid state image input unit 62 which has the fundamental configurationdescribed above.

[0314]FIG. 52 is a cross sectional view to show one example of themounting structure for members of the solid state image input unitaccording to a fourteenth embodiment of the present invention.

[0315] As shown in FIG. 52 the mounting structure for members of CerDIPtype solid state image input unit 62 of the fourteenth embodiment is tomount and fix a CerDIP type solid state image input unit 62 as thesecond member and the intermediate holding member 23 on a frame 21 asthe first member. In other words, the first adhered surface A isconstituted by a side surface of the CerDIP type solid state image inputunit 62 and a lower surface of the intermediate holding member 23.

[0316] In this fourteenth embodiment the base 63, sealing glass 66 andthe wind frame 68 of the CerDIP type solid state the input unit 62 havecommon surface with substantially same height and they are adhered ontothe intermediate holding member 23.

[0317] The leas frame 67 and the lead wire 65 are omitted in the drawingbecause as the first adhered surface A on which the intermediate holdingmember 23 is adhered, a surface without lead fame 67 is selected fromsurfaces of the CerDIP type solid state image input unit 62.

[0318] [Fifteenth Embodiment]

[0319]FIG. 53 is a cross sectional view to show one example of mountingstructure of the CerDIP type solid state image input unit according to afifteenth embodiment of the present invention.

[0320] As shown in FIG. 53 the adhesion may be achieved only at the base63 and the wind frame 68 other than the sealing glass 66.

[0321] [Sixteenth Embodiment]

[0322]FIG. 54s are cross sectional views to show one example of mountingstructure of the CerDIP type solid state image input unit according to asixteenth embodiment of the present invention, FIG. 54(a) shows anexample in which the intermediate holding member is adhered in a portionof base side, FIG. 54(b) shows an example in which the intermediateholding member is adhered in a portion of wind frame side.

[0323] As shown in FIG. 54 when a product specification requires or nowider adhering space is not required, the adhesion can be attained onlyat a portion of the base 63 as shown in FIG. 54(a) or at a portion ofthe wind frame 68 as shown in FIG. 54(b).

[0324] [Seventeenth Embodiment]

[0325]FIG. 55s are cross sectional views to show one sample of mountingstructure of the CerDIP type solid state image input unit according to aseventeenth embodiment of the present invention, FIG. 56(a) shows anexample of a case in which a base protrudes from other portions, FIG.55(b) shows an example of a case in which a wind frame protrudes fromother portions, and FIG. 55(c) shows an example of case in which thebase and the wind frame protrude with constituting a surface from otherportions.

[0326] As shown in FIG. 55 a protruding state of side surfaces (that isdimensions of each parts in Y direction) in the vertical direction ofthe base 63, sealing glass 66 and the wind frame 68 does not relate tothe performance of the CerDIP type solid state image input unit 62 andit can be arbitrary. In other words, the side surface of the solid stateimage input unit does not need to form a simple surface with the sameheight (that is no need to he a one plane).

[0327] As shown in FIG. 55(a) when in a case only a portion of the base63 protrudes from other portions in length of Δl (amount of protrudingis arbitrary), the intermediate holding member 23 is adhered only withthe base 63.

[0328] As shown in FIG. 55(b) when in a case only a portion of the windframe 68 protrudes from other portions in length of Δl (amount ofprotruding is arbitrary), the intermediate holding member 23 is adheredonly with the wind fame 68.

[0329] As shown in FIG. 55(c) when in a case portions of the base 63 andthe wind frame 68 are almost the same height (to constitute a samesurface) but protrudes from the portion of sealing glass 66 in length ofΔl (amount of protruding is arbitrary), the intermediate holding member23 is adhered with the base 63 or with the wind frame 68, or adheredwith both of the base 63 and the wind frame 68 as shown in the drawing.However, in this embodiment, when the product specification requireswider space, the more space can be realized by means that theintermediate holding member 23 is extended in X direction (directionvertical to the paper surface). In like wise in the examples shown inFIGS. 52-54, when the adhering space is deficient, wider adhering spacecan be realized by extending it in X direction according to its need.

[0330] The above described fourteenth embodiment to seventeenthembodiment are characterized by that the structure of the solid stateimage input unit 62 is composed with plate materials (base 63, windframe 68) and sealing material If laminated along a direction theoptical image coming (the optical axis direction 21) in a manner thesealing material being arranged between the base materials, and thesecond adhered surface B is at least one of the most protruding endsurface of laminated surface (side surface 62 y) of tie solid stateimage input unit 62.

[0331] Moreover, the fourteenth embodiment to seventeenth embodiment arecharacterized by that the solid state image input unit is a kind ofCerDIP type solid state image input unit 62 (that is the plate materials(base 63, wind frame 68) are made from ceramics ad the sealing materialis made from sealing glass 66).

[0332] Further, the fourteenth embodiment is characterized by that thesecond adhered surface B is composed with all the plate materials (base63, wind frame 68) and the sealing glass 66.

[0333] Further, more the fifteenth embodiment to seventeenth embodimentare characterized by that the second adhered surface B is composed withonly the plate materials (base 63, wind frame 68 or base 63 and windframe 68).

[0334] Further, more the fifteenth embodiment to seventeenth embodimentare characterized by that the second adhered surface B is composed withonly the plate materials (base 63, wind frame 68 or base 63 and windframe 68) which is the most protruding from the side surface 62 y.

[0335] According to the fourteenth embodiment to seventeenth embodimentas above described the base 63, because the sealing glass 66 and thewind frame 68 can be appropriately selected as adhering surface incompliance with a shape of side surface of the CerDIP solid state imageinput unit 62, the CerDIP type solid state image input unit having acost merit can be utilized.

[0336] More further by means that hardening Linkage force applied to theintermediate holding member 23 is transformed to a movement to comenearer (a slide) to the solid state image input unit 62 and the holdingmember of solid state image input unit with regard to an effect ofhardening shrinkage of adhesive material which occurs at a fixing (athardening of the adhesive material), the positional discrepancy at theCerDIP type solid state image input unit itself can be suppressed andthe CerDIP type solid state stage input unit 62 can be located with highaccuracy in relation to the solid state image input unit holding member.

[0337] More further, by means of utilizing the intermediate holdingember 23, because it can avoid to the utmost to employ the complicatedstructural parts (arrowheads, balls and springs), the structure does notneed expensive materials to save cost.

[0338] More further, because three degree of freedom can be given inthree direction X, Z and β by means of sliding adjustment on the firstadhered surface A and similarly it gives further three degree of freedomcan be given in three direction X, Y and γ on the second adhered surfaceB, the positioning adjustment can be achieved by micro movement alongfive directions of X, Y, Z, β and γ in total structure.

[0339] By the way, the present invention is not tested to the abovedescribed embodiments. For example in the above described embodimentsmaterial of ceramics is utilized for the base 63 and the wind frame 68,however, other materials such as epoxy resin, silicon resin of plasticsand so on can be employed. In other words, various variations can beintroduced without departing the scope and spirits of the presentinvention.

[0340] Hereinafter the effect of the present invention will bedescribed.

[0341] In accordance with the first aspect of present invention thepositioning adjustment in direction along only five axes of X, Y, Z, βand γ can easily be adjusted so that the positioning adjustment alongthe X is not achieved in positive manner.

[0342] After the positioning adjustment along five axes is completed themounting of the second member is performed with high precision and yieldof the process can get higher by means that thickness of the adhesivematerials which are applied to the adhered surface between the secondmember and the intermediate holding member and the adhered surfacebetween the first member and the intermediate holding member arecontrolled in the minimum requirement and constant value, and apositional accuracy of the adhered portions of second member and thefirst member do not have to be strictly controlled because theintermediate holding member is equipped between the second member andthe first member, and at the same time, it can be prevented that anoccurrence of deterioration in a fixing forth of the second member afterthe second member has been completed (after the adhesive material ishardened).

[0343] In accordance with the second aspect of present invention, evenwhen defective at adhesion occurs on the first adhered surface or thesecond adhered surface, or both of these, the CCD circuit boardincluding the solid state image input unit can be removed from thedetachable supporting member and the solid state image input unit can bereutilized.

[0344] In accordance with the third aspect of present invention, evenwhen defective at adhesion occurs on the first adhered surface or thesecond adhered surface, or both of these, the second member can beremoved from the detachable supporting member and the second member canbe reutilized.

[0345] In accordance with the fourth and the aspect of present inventionin the positioning adjustment for the second adhered surface theaccurate positioning adjustment can be achieved when positioningadjustment of longer distance is required than a thickness of the solidstate image input unit and a width of space between the solid stateimage input unit and the circuit board on which the solid state imageinput unit is mounted, because a longer adjustment space can be securedin Z direction by means that the second adhered surface is extending indirection of Z axis.

[0346] In accordance with the sixth aspect of present invention when thepositioning adjustment cannot be completed by only a positioningadjustment of the solid state image input unit, the accurate positioningadjustment can be achieved because a distance adjustment between theframe and the pixel line of the solid state image input unit can beachieved in Z direction.

[0347] In accordance with the seventh aspect of present invention, thepositioning adjustment with high accuracy, the positioning adjustmentalong the five axes and the advantage layout can be attained.

[0348] In accordance with the eighth aspect of present invention thestructure can be much stronger to the external force and the mechanicalvibration than a structure with the same number of intermediate holdingmember which are located all the same side.

[0349] In accordance with the ninth aspect of present invention theaccuracy of solid state image input unit can be kept in high level andmounting with high accuracy are realized because an image of chartilluminated by a light source can be focused on the solid state imageinput unit through the image forming lens unit, and calculate a positionof the second fixing portion based on the image data, a position of thesolid state image input unit in Z direction can be adjusted by thesecond fixing portion even when relative positional discrepancy which iscaused by the fluctuation of conjugate length, between the fame and thesolid state image input unit happens.

What is claimed is:
 1. A member mounting structure comprising: a first member; a second member on which a plurality of acting members are disposed along a line to effect a predetermined operation; an intermediate holding member for holding said second member so as to oppose to said first member; a first adhered surface provided between said first member and said intermediate holding member which are fixed by adhesive material; and a second adhered surface provided between said second member and said intermediate holding member which are fixed by adhesive material; said intermediate holding member being disposed so that said first adhered surface between said first member and said intermediate holding member, and said second adhered surface between said second member and said intermediate holding member are arranged parallely with the disposed direction of said plurality of acting member and said first surface and second adhered surfaces are arranged to make a right angle.
 2. A member mounting structure as claimed in claim 1 wherein said second member comprising a disposing member on which said acting members are disposed, a substrate on which said disposing member is mounted, and a supporting member for attaching and detaching to support detachably said substrate.
 3. A member mounting structure as claimed in claim 1 wherein said second member comprising a disposing member on which said acting members are disposed, and a supporting member for attaching and detaching to support detachably said substrate.
 4. A member mounting structure as claimed in claim 1 wherein said structure further comprising a substrate on which said second member is mounted, and said substrate has a through hole to be penetrated by a part of said intermediate holding member when said second member is fixed on said intermediate holding member.
 5. A member mounting structure as claimed in claim 1 wherein said structure further comprising a substrate on which said second member is mounted, and said second member is arranged so that said substrate does not abut on a part of said intermediate holding member when said second member is moved in a direction toward said first adhered surface to be fixed on said intermediate holding member.
 6. A member mounting structure as claimed in claim 1 wherein said first member has a adjusting member to adjust a distance between opposing surfaces of said first member and said second member.
 7. A member mounting structure as claimed in claim 1 wherein said first adhered surface crossed with an optical axis with right angle and a height of the optical axis is located between a width of said first adhered surface in vertical direction.
 8. A member mounting structure as claimed in claim 1 wherein plurality of said intermediate holding member are disposed and at least a pair of said intermediate holding member hold together said second member.
 9. A member mounting apparatus comprising: an image forming lens unit; a holding member for holding said image forming lens unit; a solid state image input unit for photoelectric converting image focused by said image forming lens unit; a light source; an image for positioning adjustment illuminated by said light source for generating image to perform positioning adjustment of said solid state image input unit; and a fixing operation portion for performing positioning adjustment of image forming lens unit and solid state image input unit and for fixing said holding member and said solid state image input unit; said image for positioning adjustment being focused on said solid state image input unit through image forming lens unit; relative position of said image forming lens unit and said solid state image input unit being calculated based on photoelectric converted focused data. 